Error when upgrading to Nextcloud 20.0.4

Hello,

i updated my nextcloud via the updater (webinterface) and now it is stuck in step 9. When i try to go with the occ command following message comes:

An unhandled exception has been thrown:
OCP\AppFramework\QueryException: Could not resolve OCA\Settings\AppInfo\Application! Class OCA\Settings\AppInfo\Application does not exist in /home/users/familie/www/cloud/lib/private/AppFramework/Utility/SimpleContainer.php:107
Stack trace:
#0 /home/users/familie/www/cloud/lib/private/AppFramework/Utility/SimpleContainer.php(116): OC\AppFramework\Utility\SimpleContainer->resolve('OCA\\Settings\\Ap...')
#1 /home/users/familie/www/cloud/lib/private/ServerContainer.php(149): OC\AppFramework\Utility\SimpleContainer->query('OCA\\Settings\\Ap...', true)
#2 /home/users/familie/www/cloud/lib/base.php(737): OC\ServerContainer->query('OCA\\Settings\\Ap...')
#3 /home/users/familie/www/cloud/lib/base.php(1093): OC::init()
#4 /home/users/familie/www/cloud/console.php(49): require_once('/home/users/fam...')
#5 /home/users/familie/www/cloud/occ(11): require_once('/home/users/fam...')

have anyone an idea what to do?