Deactivated apps can no longer be activated in Nextcloud 20

After the update to Nextcloud 20, deactivated apps can no longer be activated.

After entering the password, the message appears

Authentication failed, try again

The message also appears when an attempt is made to activate apps that are compatible with Nextcloud 20.

Are you sure you are entering the correct password?

There were now updates for the deactivated apps and afterwards the activation worked.