SOLVED: Uninstalling nextcloud-official hangs

I tried to uninstall nextcloud-official docker via Rock-ons Web UI.
Unfortunately the process seems to be stucked.

In rockstor logs i can find the following informations:

OperationalError: deadlock detected
DETAIL:  Process 1407 waits for ShareLock on transaction 8379322; blocked by process 1375.
Process 1375 waits for ShareLock on transaction 8379325; blocked by process 1407.
HINT:  See server log for query details.
CONTEXT:  while updating tuple (0,38) in relation "storageadmin_pool"

[13/Dec/2022 21:37:12] INFO [storageadmin.views.rockon:103] Rockon (Nextcloud-Official) state pending and no pending task: assuming task is mid execution.

Deleted with command
/opt/rockstor/bin/delete-rockon Nextcloud-Official