AttributeError at /signprot/gbb1_human/

'NoneType' object has no attribute 'slug'

Request Method: | GET -- | -- ``` http://0.0.0.0:8000/signprot/gbb1_human/ 2.2.17 AttributeError 'NoneType' object has no attribute 'slug' /Users/zhg791/protwis/signprot/views.py in signprotdetail, line 1503 /Users/zhg791/mc3_intel/envs/gpcrdb/bin/python 3.7.16 ['/Users/zhg791/protwis', '/Users/zhg791/.vscode/extensions/ms-python.debugpy-2024.10.0-darwin-arm64/bundled/libs/debugpy/_vendored/pydevd', '/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python37.zip', '/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python3.7', '/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python3.7/lib-dynload', '/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python3.7/site-packages'] Tue, 17 Sep 2024 17:35:16 +0200 ``` Environment:

Request Method: GET
Request URL: http://0.0.0.0:8000/signprot/gbb1_human/

Django Version: 2.2.17
Python Version: 3.7.16
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.humanize',
'debug_toolbar',
'rest_framework',
'rest_framework_swagger',
'polymorphic',
'common',
'api',
'news',
'pages',
'home',
'protein',
'family',
'residue',
'alignment',
'similaritysearch',
'similaritymatrix',
'structure',
'ligand',
'interaction',
'mutation',
'phylogenetic_trees',
'sitesearch',
'build',
'construct',
'tools',
'drugs',
'signprot',
'mutational_landscape',
'contactnetwork',
'seqsign',
'angles',
'hotspots',
'django_rdkit')
Installed Middleware:
('common.middleware.stats.StatsMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware')

Traceback:

File "/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
34. response = get_response(request)

File "/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
115. response = self.process_exception_by_middleware(e, request)

File "/Users/zhg791/mc3_intel/envs/gpcrdb/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
113. response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/Users/zhg791/protwis/signprot/views.py" in signprotdetail