Job Service not processing

Hey,

my job sservers are not willing to process any jobs.

Same warning message for each is:

"Warning No private key supplied. Running without encryption support."
"Warning Processing is disabled (single user mode running)."
Context: I am testing disaster recovery, and did a DB restore. That went well without any issues, except the mentioned issue with the job services and DBQueue on hold, which I could resolve with: https://support.oneidentity.com/identity-manager/kb/239099/dbqueue-processor-does-not-process-tasks.
I've also followed the instructions to create a new key and applied it to the Job Service config.
Any further hints?