SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('b9ba537c345fe5d6a0a7254e63301491','0','216.73.216.181','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1750176297','thread.php?postid=74004','0','0','')
mysql error: Duplicate entry 'b9ba537c345fe5d6a0a7254e63301491' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.33-0ubuntu0.16.04.1
php version: 5.6.40
Date: 17.06.2025 @ 18:04
Script: /thread.php?postid=74004
Referer: