Problem is solved via this topic:
https://support.plesk.com/hc/en-us/articles/12377770549015--How-to-synchronize-locked-subscriptions-with-their-service-plans
Hello,
since today no changes are taken effect for a couple domains which are configured with the same service package (Unlimited). The server ressources should not be the problem. This happens even for new created packages and abos. The domains still blocking the changes and in our case we...