This began after an upgrade to NextCloud 15 from 14.
[no app in context] Info: OCP\AppFramework\QueryException: Could not resolve state! Class state does not exist at <<closure>>
0. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 119
resolve("state")
1. /var/www/nextcloud/lib/private/ServerContainer.php line 132
query("state")
2. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 68
query("state")
3. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 98
buildClass(ReflectionClass ... "})
4. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 119
resolve("OCA\\TwoFactorTOTP\\Settings\\Personal")
5. /var/www/nextcloud/lib/private/ServerContainer.php line 132
query("OCA\\TwoFactorTOTP\\Settings\\Personal")
6. /var/www/nextcloud/lib/private/Settings/Manager.php line 163
query("OCA\\TwoFactorTOTP\\Settings\\Personal")
7. /var/www/nextcloud/lib/private/Settings/Manager.php line 283
getSettings("admin", "logging")
8. /var/www/nextcloud/settings/Controller/AdminSettingsController.php line 73
getAdminSettings("logging")
9. /var/www/nextcloud/settings/Controller/CommonSettingsTrait.php line 126
getSettings("logging")
10. /var/www/nextcloud/settings/Controller/AdminSettingsController.php line 65
getIndexResponse("admin", "logging")
11. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 166
index("logging")
12. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 99
executeController(OC\Settings\Cont ... {}, "index")
13. /var/www/nextcloud/lib/private/AppFramework/App.php line 118
dispatch(OC\Settings\Cont ... {}, "index")
14. /var/www/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php line 47
main("OC\\Settings\\C ... r", "index", OC\AppFramework\ ... {}, {section: "loggi ... "})
15. <<closure>>
__invoke({section: "loggi ... "})
16. /var/www/nextcloud/lib/private/Route/Router.php line 297
call_user_func(OC\AppFramework\ ... {}, {section: "loggi ... "})
17. /var/www/nextcloud/lib/base.php line 987
match("/settings/admin/logging")
18. /var/www/nextcloud/index.php line 42
handleRequest()