TALK app doesn't work anymore after the upgrade to Nextcloud Hub II (23.0.0)

When I go to the Settings page the following message appears:

Internal Server Error
The server was unable to complete your request.
If this happens again, please send the technical details below to the server administrator.

More details can be found in the server log.
Technical details

Remote Address: 81.231.88.173
Request ID: YeE1tK9VdfNz04QjBUk-DAAABBg
OCP\AppFramework\QueryException
0
Could not resolve OCA\Talk\Settings\Admin\Section! Class “OCA\Talk\Settings\Admin\Section” does not exist
/home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php
120

Trace

#0 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(131): OC\AppFramework\Utility\SimpleContainer->resolve()
#1 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/ServerContainer.php(161): OC\AppFramework\Utility\SimpleContainer->query()
#2 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(56): OC\ServerContainer->query()
#3 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/Settings/Manager.php(130): OC\AppFramework\Utility\SimpleContainer->get()
#4 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/Settings/Manager.php(231): OC\Settings\Manager->getSections()
#5 /home/…/domains/growhealthycoop.online/public_html/nextcloud/apps/settings/lib/Controller/CommonSettingsTrait.php(114): OC\Settings\Manager->getAdminSections()
#6 /home/…/domains/growhealthycoop.online/public_html/nextcloud/apps/settings/lib/Controller/CommonSettingsTrait.php(67): OCA\Settings\Controller\PersonalSettingsController->formatAdminSections()
#7 /home/…/domains/growhealthycoop.online/public_html/nextcloud/apps/settings/lib/Controller/CommonSettingsTrait.php(139): OCA\Settings\Controller\PersonalSettingsController->getNavigationParameters()
#8 /home/…/domains/growhealthycoop.online/public_html/nextcloud/apps/settings/lib/Controller/PersonalSettingsController.php(64): OCA\Settings\Controller\PersonalSettingsController->getIndexResponse()
#9 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php(217): OCA\Settings\Controller\PersonalSettingsController->index()
#10 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php(126): OC\AppFramework\Http\Dispatcher->executeController()
#11 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/AppFramework/App.php(157): OC\AppFramework\Http\Dispatcher->dispatch()
#12 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/private/Route/Router.php(302): OC\AppFramework\App::main()
#13 /home/…/domains/growhealthycoop.online/public_html/nextcloud/lib/base.php(1006): OC\Route\Router->match()
#14 /home/…/domains/growhealthycoop.online/public_html/nextcloud/index.php(36): OC::handleRequest()
#15 {main}

I’ve checked with our hosting provider, but they haven’t been able to resolve the issue yet. Some help would be very welcome!!