· 6 years ago · May 03, 2019, 02:02 PM
1ProtectedError at /api/tier/24
2("Cannot delete some instances of model 'Plan' because they are referenced through a protected foreign key: 'Company.plan'", <QuerySet [<Company: Company object (212)>, <Company: Company object (1)>]>)
3
4Request Method: DELETE
5Request URL: https://api.dev.app.talkbacktime.com/api/tier/24
6Django Version: 2.1.2
7Python Executable: /home/ubuntu/MVP-BE-DEV/venv/bin/python3
8Python Version: 3.6.7
9Python Path: ['/home/ubuntu/MVP-BE-DEV', '/home/ubuntu/MVP-BE-DEV/venv/bin', '/home/ubuntu/MVP-BE-DEV/venv/lib/python36.zip', '/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6', '/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/lib-dynload', '/usr/lib/python3.6', '/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages']
10Server time: Fri, 3 May 2019 13:58:31 +0000
11Installed Applications:
12['django.contrib.auth',
13 'django.contrib.contenttypes',
14 'django.contrib.sessions',
15 'django.contrib.staticfiles',
16 'rest_framework',
17 'oauth2_provider',
18 'django_filters',
19 'corsheaders',
20 'django_rq',
21 'core.apps.CoreConfig',
22 'sales.apps.SalesConfig',
23 'surveys.apps.SurveysConfig',
24 'responses.apps.ResponsesConfig',
25 'deliveries.apps.DeliveriesConfig']
26Installed Middleware:
27['corsheaders.middleware.CorsMiddleware',
28 'django.contrib.sessions.middleware.SessionMiddleware',
29 'oauth2_provider.middleware.OAuth2TokenMiddleware',
30 'django.middleware.common.CommonMiddleware',
31 'django.middleware.csrf.CsrfViewMiddleware',
32 'django.contrib.auth.middleware.AuthenticationMiddleware',
33 'core.middleware.CompanyMiddleware',
34 'django.middleware.clickjacking.XFrameOptionsMiddleware']
35
36
37Traceback:
38
39File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
40 34. response = get_response(request)
41
42File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
43 126. response = self.process_exception_by_middleware(e, request)
44
45File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
46 124. response = wrapped_callback(request, *callback_args, **callback_kwargs)
47
48File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/views/decorators/csrf.py" in wrapped_view
49 54. return view_func(*args, **kwargs)
50
51File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/rest_framework/viewsets.py" in view
52 116. return self.dispatch(request, *args, **kwargs)
53
54File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
55 495. response = self.handle_exception(exc)
56
57File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/rest_framework/views.py" in handle_exception
58 455. self.raise_uncaught_exception(exc)
59
60File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
61 492. response = handler(request, *args, **kwargs)
62
63File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/rest_framework/mixins.py" in destroy
64 93. self.perform_destroy(instance)
65
66File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/rest_framework/mixins.py" in perform_destroy
67 97. instance.delete()
68
69File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/db/models/base.py" in delete
70 879. collector.collect([self], keep_parents=keep_parents)
71
72File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/db/models/deletion.py" in collect
73 221. field.remote_field.on_delete(self, field, sub_objs, self.using)
74
75File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/db/models/deletion.py" in CASCADE
76 16. source_attr=field.name, nullable=field.null)
77
78File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/db/models/deletion.py" in collect
79 221. field.remote_field.on_delete(self, field, sub_objs, self.using)
80
81File "/home/ubuntu/MVP-BE-DEV/venv/lib/python3.6/site-packages/django/db/models/deletion.py" in PROTECT
82 27. sub_objs
83
84Exception Type: ProtectedError at /api/tier/24
85Exception Value: ("Cannot delete some instances of model 'Plan' because they are referenced through a protected foreign key: 'Company.plan'", <QuerySet [<Company: Company object (212)>, <Company: Company object (1)>]>)
86Request information:
87USER: ihor.magur@devabit.com
88
89GET: No GET data
90
91POST: No POST data
92
93FILES: No FILES data
94
95COOKIES: No cookie data
96
97META:
98HTTP_ACCEPT = '*/*'
99HTTP_ACCEPT_ENCODING = 'gzip, deflate, br'
100HTTP_ACCEPT_LANGUAGE = 'en-US,en;q=0.9,fr;q=0.8,ru;q=0.7,de;q=0.6,uk;q=0.5,und;q=0.4'
101HTTP_AUTHORIZATION = 'Bearer WbZn6rdOxXKxqIvC3Wqu2LhBKSSSB9'
102HTTP_CONNECTION = 'close'
103HTTP_HOST = 'api.dev.app.talkbacktime.com'
104HTTP_ORIGIN = 'https://dev.app.talkbacktime.com'
105HTTP_REFERER = 'https://dev.app.talkbacktime.com/ecommerce/tiers'
106HTTP_USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36'
107HTTP_X_FORWARDED_FOR = '193.93.216.194'
108HTTP_X_FORWARDED_PROTO = 'https'
109PATH_INFO = '/api/tier/24'
110QUERY_STRING = ''
111RAW_URI = '/api/tier/24'
112REMOTE_ADDR = ''
113REQUEST_METHOD = 'DELETE'
114SCRIPT_NAME = ''
115SERVER_NAME = 'api.dev.app.talkbacktime.com'
116SERVER_PORT = '443'
117SERVER_PROTOCOL = 'HTTP/1.0'
118SERVER_SOFTWARE = 'gunicorn/19.9.0'
119gunicorn.socket = <socket.socket fd=10, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0, laddr=/home/ubuntu/talk_back_time_dev.sock>
120wsgi.errors = <gunicorn.http.wsgi.WSGIErrorsWrapper object at 0x7f13470f3ef0>
121wsgi.file_wrapper = ''
122wsgi.input = <gunicorn.http.body.Body object at 0x7f13470f3588>
123wsgi.multiprocess = True
124wsgi.multithread = False
125wsgi.run_once = False
126wsgi.url_scheme = 'https'
127wsgi.version = '(1, 0)'
128
129Settings:
130Using settings module talk_back_time.settings
131ABSOLUTE_URL_OVERRIDES = {}
132ADMINS = []
133ALLOWED_HOSTS = ['*']
134APPEND_SLASH = True
135AUTHENTICATION_BACKENDS = "('core.backends.AuthBackend', 'core.backends.DjangoOAuthBackend')"
136AUTH_PASSWORD_VALIDATORS = '********************'
137AUTH_USER_MODEL = 'core.User'
138AWS_ACCESS_KEY_ID = '********************'
139AWS_LOCATION = 'media'
140AWS_QUERYSTRING_AUTH = False
141AWS_S3_FILE_OVERWRITE = False
142AWS_S3_REGION_NAME = 'us-east-1'
143AWS_SECRET_ACCESS_KEY = '********************'
144AWS_STORAGE_BUCKET_NAME = 'tbt-videos'
145BASE_DIR = '/home/ubuntu/MVP-BE-DEV'
146BASE_DOMAIN = 'https://dev.app.talkbacktime.com/'
147CACHES = {'default': {'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'}}
148CACHE_MIDDLEWARE_ALIAS = 'default'
149CACHE_MIDDLEWARE_KEY_PREFIX = '********************'
150CACHE_MIDDLEWARE_SECONDS = 600
151COGNITO_CLIENT_ID = '22m3vjt7d9jem4171dg5b4u9vf'
152COGNITO_POOL_ID = 'us-east-2_n4j8A0OoR'
153COGNITO_USER_MAP = {'first_name': 'given_name', 'last_name': 'family_name', 'phone': 'phone_number', 'email': 'email', 'title': 'name'}
154CORS_ORIGIN_ALLOW_ALL = True
155CORS_ORIGIN_WHITELIST = "('localhost',)"
156CSRF_COOKIE_AGE = 31449600
157CSRF_COOKIE_DOMAIN = None
158CSRF_COOKIE_HTTPONLY = False
159CSRF_COOKIE_NAME = 'csrftoken'
160CSRF_COOKIE_PATH = '/'
161CSRF_COOKIE_SAMESITE = 'Lax'
162CSRF_COOKIE_SECURE = False
163CSRF_FAILURE_VIEW = 'django.views.csrf.csrf_failure'
164CSRF_HEADER_NAME = 'HTTP_X_CSRFTOKEN'
165CSRF_TRUSTED_ORIGINS = []
166CSRF_USE_SESSIONS = False
167DATABASES = {'default': {'ENGINE': 'django.db.backends.postgresql', 'NAME': 'tbt_dev_db', 'USER': 'tbt_dev_u', 'HOST': 'tbt-dev-db.cnreaqf3s1le.us-east-2.rds.amazonaws.com', 'PASSWORD': '********************', 'ATOMIC_REQUESTS': False, 'AUTOCOMMIT': True, 'CONN_MAX_AGE': 0, 'OPTIONS': {}, 'TIME_ZONE': None, 'PORT': '', 'TEST': {'CHARSET': None, 'COLLATION': None, 'NAME': None, 'MIRROR': None}}}
168DATABASE_ROUTERS = []
169DATA_UPLOAD_MAX_MEMORY_SIZE = 2621440
170DATA_UPLOAD_MAX_NUMBER_FIELDS = 1000
171DATETIME_FORMAT = 'N j, Y, P'
172DATETIME_INPUT_FORMATS = ['%Y-%m-%d %H:%M:%S', '%Y-%m-%d %H:%M:%S.%f', '%Y-%m-%d %H:%M', '%Y-%m-%d', '%m/%d/%Y %H:%M:%S', '%m/%d/%Y %H:%M:%S.%f', '%m/%d/%Y %H:%M', '%m/%d/%Y', '%m/%d/%y %H:%M:%S', '%m/%d/%y %H:%M:%S.%f', '%m/%d/%y %H:%M', '%m/%d/%y']
173DATE_FORMAT = 'N j, Y'
174DATE_INPUT_FORMATS = ['%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y', '%b %d %Y', '%b %d, %Y', '%d %b %Y', '%d %b, %Y', '%B %d %Y', '%B %d, %Y', '%d %B %Y', '%d %B, %Y']
175DEBUG = True
176DEBUG_PROPAGATE_EXCEPTIONS = False
177DECIMAL_SEPARATOR = '.'
178DEFAULT_CHARSET = 'utf-8'
179DEFAULT_CONTENT_TYPE = 'text/html'
180DEFAULT_EXCEPTION_REPORTER_FILTER = 'django.views.debug.SafeExceptionReporterFilter'
181DEFAULT_FILE_STORAGE = 'storages.backends.s3boto3.S3Boto3Storage'
182DEFAULT_FROM_EMAIL = 'no-reply@talkbacktime.com'
183DEFAULT_INDEX_TABLESPACE = ''
184DEFAULT_TABLESPACE = ''
185DISALLOWED_USER_AGENTS = []
186EMAIL_BACKEND = 'core.backends.EmailBackend'
187EMAIL_HOST = 'email-smtp.us-east-1.amazonaws.com'
188EMAIL_HOST_PASSWORD = '********************'
189EMAIL_HOST_USER = 'AKIAJK6HDCQXW64TLCRQ'
190EMAIL_PORT = 587
191EMAIL_SSL_CERTFILE = None
192EMAIL_SSL_KEYFILE = '********************'
193EMAIL_SUBJECT_PREFIX = '[Django] '
194EMAIL_TIMEOUT = None
195EMAIL_USE_LOCALTIME = False
196EMAIL_USE_SSL = False
197EMAIL_USE_TLS = True
198ENVIRONMENT = 'dev'
199FILE_CHARSET = 'utf-8'
200FILE_UPLOAD_DIRECTORY_PERMISSIONS = None
201FILE_UPLOAD_HANDLERS = ['django.core.files.uploadhandler.MemoryFileUploadHandler', 'django.core.files.uploadhandler.TemporaryFileUploadHandler']
202FILE_UPLOAD_MAX_MEMORY_SIZE = 2621440
203FILE_UPLOAD_PERMISSIONS = None
204FILE_UPLOAD_TEMP_DIR = None
205FIRST_DAY_OF_WEEK = 0
206FIXTURE_DIRS = []
207FORCE_SCRIPT_NAME = None
208FORMAT_MODULE_PATH = None
209FORM_RENDERER = 'django.forms.renderers.DjangoTemplates'
210GRAPHENE = {'SCHEMA': 'talk_back_time.schema.schema'}
211IGNORABLE_404_URLS = []
212INSTALLED_APPS = ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.staticfiles', 'rest_framework', 'oauth2_provider', 'django_filters', 'corsheaders', 'django_rq', 'core.apps.CoreConfig', 'sales.apps.SalesConfig', 'surveys.apps.SurveysConfig', 'responses.apps.ResponsesConfig', 'deliveries.apps.DeliveriesConfig']
213INTERNAL_IPS = []
214LANGUAGES = [('af', 'Afrikaans'), ('ar', 'Arabic'), ('ast', 'Asturian'), ('az', 'Azerbaijani'), ('bg', 'Bulgarian'), ('be', 'Belarusian'), ('bn', 'Bengali'), ('br', 'Breton'), ('bs', 'Bosnian'), ('ca', 'Catalan'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('dsb', 'Lower Sorbian'), ('el', 'Greek'), ('en', 'English'), ('en-au', 'Australian English'), ('en-gb', 'British English'), ('eo', 'Esperanto'), ('es', 'Spanish'), ('es-ar', 'Argentinian Spanish'), ('es-co', 'Colombian Spanish'), ('es-mx', 'Mexican Spanish'), ('es-ni', 'Nicaraguan Spanish'), ('es-ve', 'Venezuelan Spanish'), ('et', 'Estonian'), ('eu', 'Basque'), ('fa', 'Persian'), ('fi', 'Finnish'), ('fr', 'French'), ('fy', 'Frisian'), ('ga', 'Irish'), ('gd', 'Scottish Gaelic'), ('gl', 'Galician'), ('he', 'Hebrew'), ('hi', 'Hindi'), ('hr', 'Croatian'), ('hsb', 'Upper Sorbian'), ('hu', 'Hungarian'), ('ia', 'Interlingua'), ('id', 'Indonesian'), ('io', 'Ido'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('ka', 'Georgian'), ('kab', 'Kabyle'), ('kk', 'Kazakh'), ('km', 'Khmer'), ('kn', 'Kannada'), ('ko', 'Korean'), ('lb', 'Luxembourgish'), ('lt', 'Lithuanian'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('ml', 'Malayalam'), ('mn', 'Mongolian'), ('mr', 'Marathi'), ('my', 'Burmese'), ('nb', 'Norwegian Bokmål'), ('ne', 'Nepali'), ('nl', 'Dutch'), ('nn', 'Norwegian Nynorsk'), ('os', 'Ossetic'), ('pa', 'Punjabi'), ('pl', 'Polish'), ('pt', 'Portuguese'), ('pt-br', 'Brazilian Portuguese'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sq', 'Albanian'), ('sr', 'Serbian'), ('sr-latn', 'Serbian Latin'), ('sv', 'Swedish'), ('sw', 'Swahili'), ('ta', 'Tamil'), ('te', 'Telugu'), ('th', 'Thai'), ('tr', 'Turkish'), ('tt', 'Tatar'), ('udm', 'Udmurt'), ('uk', 'Ukrainian'), ('ur', 'Urdu'), ('vi', 'Vietnamese'), ('zh-hans', 'Simplified Chinese'), ('zh-hant', 'Traditional Chinese')]
215LANGUAGES_BIDI = ['he', 'ar', 'fa', 'ur']
216LANGUAGE_CODE = 'en-us'
217LANGUAGE_COOKIE_AGE = None
218LANGUAGE_COOKIE_DOMAIN = None
219LANGUAGE_COOKIE_NAME = 'django_language'
220LANGUAGE_COOKIE_PATH = '/'
221LOCALE_PATHS = []
222LOGGING = {}
223LOGGING_CONFIG = 'logging.config.dictConfig'
224LOGIN_REDIRECT_URL = '/accounts/profile/'
225LOGIN_URL = '/accounts/login/'
226LOGOUT_REDIRECT_URL = None
227MANAGERS = []
228MEDIA_ROOT = '/home/ubuntu/MVP-BE-DEV/media'
229MEDIA_URL = '/media/'
230MESSAGE_STORAGE = 'django.contrib.messages.storage.fallback.FallbackStorage'
231MIDDLEWARE = ['corsheaders.middleware.CorsMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'oauth2_provider.middleware.OAuth2TokenMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'core.middleware.CompanyMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware']
232MIGRATION_MODULES = {}
233MONTH_DAY_FORMAT = 'F j'
234NUMBER_GROUPING = 0
235OAUTH2_PROVIDER = {'SCOPES': {'default': 'Default'}}
236PASSWORD_HASHERS = '********************'
237PASSWORD_RESET_TIMEOUT_DAYS = '********************'
238PREPEND_WWW = False
239REST_FRAMEWORK = {'DEFAULT_AUTHENTICATION_CLASSES': ('core.backends.SessionAuthBackend', 'core.backends.RestOAuth2')}
240ROOT_URLCONF = 'talk_back_time.urls'
241RQ_QUEUES = {'default': {'HOST': 'localhost', 'PORT': 6379, 'DB': 0, 'DEFAULT_TIMEOUT': 360}, 'high': {'HOST': 'localhost', 'PORT': 6379, 'DB': 0, 'DEFAULT_TIMEOUT': 500}, 'low': {'HOST': 'localhost', 'PORT': 6379, 'DB': 0}}
242RTC_SERVER_URL = 'https://video.app.talkbacktime.com/'
243SECRETS = '********************'
244SECRET_KEY = '********************'
245SECURE_BROWSER_XSS_FILTER = False
246SECURE_CONTENT_TYPE_NOSNIFF = False
247SECURE_HSTS_INCLUDE_SUBDOMAINS = False
248SECURE_HSTS_PRELOAD = False
249SECURE_HSTS_SECONDS = 0
250SECURE_PROXY_SSL_HEADER = None
251SECURE_REDIRECT_EXEMPT = []
252SECURE_SSL_HOST = None
253SECURE_SSL_REDIRECT = False
254SERVER_DOMAIN = 'https://api.dev.app.talkbacktime.com/'
255SERVER_EMAIL = 'root@localhost'
256SESSION_CACHE_ALIAS = 'default'
257SESSION_COOKIE_AGE = 1209600
258SESSION_COOKIE_DOMAIN = None
259SESSION_COOKIE_HTTPONLY = True
260SESSION_COOKIE_NAME = 'sessionid'
261SESSION_COOKIE_PATH = '/'
262SESSION_COOKIE_SAMESITE = 'Lax'
263SESSION_COOKIE_SECURE = False
264SESSION_ENGINE = 'django.contrib.sessions.backends.db'
265SESSION_EXPIRE_AT_BROWSER_CLOSE = False
266SESSION_FILE_PATH = None
267SESSION_SAVE_EVERY_REQUEST = False
268SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'
269SES_ACCESS_KEY_ID = '********************'
270SES_SECRET_ACCESS_KEY = '********************'
271SETTINGS_MODULE = 'talk_back_time.settings'
272SHORT_DATETIME_FORMAT = 'm/d/Y P'
273SHORT_DATE_FORMAT = 'm/d/Y'
274SIGNING_BACKEND = 'django.core.signing.TimestampSigner'
275SILENCED_SYSTEM_CHECKS = []
276SIMPLE_JWT = {'ACCESS_TOKEN_LIFETIME': '********************', 'REFRESH_TOKEN_LIFETIME': '********************', 'ROTATE_REFRESH_TOKENS': '********************', 'BLACKLIST_AFTER_ROTATION': True, 'ALGORITHM': 'HS256', 'SIGNING_KEY': '********************', 'VERIFYING_KEY': '********************', 'AUTH_HEADER_TYPES': ('Bearer',), 'USER_ID_FIELD': 'id', 'USER_ID_CLAIM': 'user_id', 'AUTH_TOKEN_CLASSES': '********************', 'TOKEN_TYPE_CLAIM': '********************', 'SLIDING_TOKEN_REFRESH_EXP_CLAIM': '********************', 'SLIDING_TOKEN_LIFETIME': '********************', 'SLIDING_TOKEN_REFRESH_LIFETIME': '********************'}
277SNS_ACCESS_KEY_ID = '********************'
278SNS_SECRET_ACCESS_KEY = '********************'
279STATICFILES_DIRS = []
280STATICFILES_FINDERS = ['django.contrib.staticfiles.finders.FileSystemFinder', 'django.contrib.staticfiles.finders.AppDirectoriesFinder']
281STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.StaticFilesStorage'
282STATIC_ROOT = '/home/ubuntu/MVP-BE-DEV/static'
283STATIC_URL = '/static/'
284TEMPLATES = [{'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': ['/home/ubuntu/MVP-BE-DEV/templates'], 'APP_DIRS': True, 'OPTIONS': {'context_processors': ['django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages']}}]
285TEST_NON_SERIALIZED_APPS = []
286TEST_RUNNER = 'django.test.runner.DiscoverRunner'
287THOUSAND_SEPARATOR = ','
288TIME_FORMAT = 'P'
289TIME_INPUT_FORMATS = ['%H:%M:%S', '%H:%M:%S.%f', '%H:%M']
290TIME_ZONE = 'UTC'
291USE_I18N = True
292USE_L10N = True
293USE_THOUSAND_SEPARATOR = False
294USE_TZ = True
295USE_X_FORWARDED_HOST = False
296USE_X_FORWARDED_PORT = False
297VERIFICATION_SUBJECT = 'Verify email'
298WSGI_APPLICATION = 'talk_back_time.wsgi.application'
299X_FRAME_OPTIONS = 'SAMEORIGIN'
300YEAR_MONTH_FORMAT = 'F Y'
301
302
303You're seeing this error because you have DEBUG = True in your
304Django settings file. Change that to False, and Django will
305display a standard page generated by the handler for this status code.