Error getting content info for : content not found

Hi Folks,

since some days i’m getting:

error getting content info for 06eb595da19fe56135c15e1e03e0d301: content not found

The files are not accessible with error “object not found”
Kopia is running on a unraid server. No parallel access from different kopia instances and no errors or failures on the server itself.

Any hints or ideas what happened or how to repair the repository?

already tried full maintenance but it only prints:

ERROR snapshot GC failure: error running snapshot gc: unable to find in-use content ID: error processing snapshot root: encountered 14 errors

occured with version v0.13.0. no change with v0.14.1