SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: SELECT threadid FROM bb1_threads WHERE important <> 0 OR lastposttime > '1713724733'
mysql error: Table 'usr_web3_1.bb1_threads' doesn't exist
mysql error number: 1146
mysql version: 10.0.32-MariaDB-0+deb8u1
php version: 5.6.33-0+deb8u1
Date: 28.04.2024 @ 20:38
Script: /register.php?sid=c4f61fb09e67f3a898e930f864e673da
Referer: