sc_tbprj access error when running the application

Hello

suddenly i have in bothe of my projects the error messages when i try to run the application

Table sc_tbprj access error :You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘’, ‘ERROR’, ‘toolbar=no,location=no,directories=no,status=no,menubar=no,scrollba’ at line 1

any ideas? thanks for help
rob

PS it is still 8.0 since the update to 8.1 fails an I had noch timem for the manual update so far