Class 'ERROR' not found in query 'query'

[fcoexposito]

I see the error

ERROR: Class 'ERROR' not found in query 'query'

when I try to save a 2d file as overwrite, but I can create new versions (Modeling 12.01C, WorkManager 11)

Any help???

Thanks.

[Tom]

Could you post the Java-call-stack?
That might be helpful.

(Ckick on "Details" in the error dialog to get the call-stack)