SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: SELECT * FROM bb1_posts WHERE postid = '20487'
mysql error: Table 'usr_web3_1.bb1_posts' doesn't exist
mysql error number: 1146
mysql version: 10.0.32-MariaDB-0+deb8u1
php version: 5.6.33-0+deb8u1
Date: 08.05.2024 @ 15:17
Script: /addreply.php?postid=20487&sid=12d722ac8ef8b4e6a22e476c2d50d4ee
Referer: