Unique constraint violation


I am using Camunda 7.8, suddenly it doesn’t respond for any action.
log file shows the following error:

Error flushing statements, java.sql.BatchUpdateException: ORA-00001: unique constraint (ACT_UNIQ_VARIABLE) violated
Please suggest why I face this error and how to solve it?

Hi @pinky
When do you get this error? Is it during the application startup?
Does it ever work before? If yes, what changes have been made to the setup?
Could you share the full log?