OperationalError at /admin/products/product/add/

Environment: Request Method: POST Request URL: http://127.0.0.1:8000/admin/products/product/add/ Django Version: 2.0.7 Python Version: 3.8.10 Installed Applications: ['django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'products'] Installed Middleware: ['django.middleware.security.SecurityMiddleware', '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 "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\utils.py" in _execute 85. return self.cursor.execute(sql, params) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\sqlite3\base.py" in execute 303. return Database.Cursor.execute(self, query, params) The above exception (no such table: main.auth_user__old) was the direct cause of the following exception: File "C:\Dev\trydjango\trydjango\lib\site-packages\django\core\handlers\exception.py" in inner 35. response = get_response(request) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\core\handlers\base.py" in _get_response 128. response = self.process_exception_by_middleware(e, request) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\core\handlers\base.py" in _get_response 126. response = wrapped_callback(request, *callback_args, **callback_kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\options.py" in wrapper 575. return self.admin_site.admin_view(view)(*args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\utils\decorators.py" in _wrapped_view 142. response = view_func(request, *args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\views\decorators\cache.py" in _wrapped_view_func 44. response = view_func(request, *args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\sites.py" in inner 223. return view(request, *args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\options.py" in add_view 1554. return self.changeform_view(request, None, form_url, extra_context) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\utils\decorators.py" in _wrapper 62. return bound_func(*args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\utils\decorators.py" in _wrapped_view 142. response = view_func(request, *args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\utils\decorators.py" in bound_func 58. return func.__get__(self, type(self))(*args2, **kwargs2) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\options.py" in changeform_view 1451. return self._changeform_view(request, object_id, form_url, extra_context) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\options.py" in _changeform_view 1495. self.log_addition(request, new_object, change_message) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\options.py" in log_addition 768. return LogEntry.objects.log_action( File "C:\Dev\trydjango\trydjango\lib\site-packages\django\contrib\admin\models.py" in log_action 23. return self.model.objects.create( File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\manager.py" in manager_method 82. return getattr(self.get_queryset(), name)(*args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\query.py" in create 417. obj.save(force_insert=True, using=self.db) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\base.py" in save 728. self.save_base(using=using, force_insert=force_insert, File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\base.py" in save_base 759. updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\base.py" in _save_table 842. result = self._do_insert(cls._base_manager, using, fields, update_pk, raw) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\base.py" in _do_insert 879. return manager._insert([self], fields=fields, return_id=update_pk, File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\manager.py" in manager_method 82. return getattr(self.get_queryset(), name)(*args, **kwargs) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\query.py" in _insert 1125. return query.get_compiler(using=using).execute_sql(return_id) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\models\sql\compiler.py" in execute_sql 1285. cursor.execute(sql, params) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\utils.py" in execute 100. return super().execute(sql, params) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\utils.py" in execute 68. return self._execute_with_wrappers(sql, params, many=False, executor=self._execute) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\utils.py" in _execute_with_wrappers 77. return executor(sql, params, many, context) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\utils.py" in _execute 85. return self.cursor.execute(sql, params) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\utils.py" in __exit__ 89. raise dj_exc_value.with_traceback(traceback) from exc_value File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\utils.py" in _execute 85. return self.cursor.execute(sql, params) File "C:\Dev\trydjango\trydjango\lib\site-packages\django\db\backends\sqlite3\base.py" in execute 303. return Database.Cursor.execute(self, query, params) Exception Type: OperationalError at /admin/products/product/add/ Exception Value: no such table: main.auth_user__old

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