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 ('8515dd7d03eb2b421631a9cba811ade6','0','3.147.44.89','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716131354','memberslist.php?sid=4d383500f766283bb6982414876efaf7','0','0','')
mysql error: Duplicate entry '8515dd7d03eb2b421631a9cba811ade6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 19.05.2024 @ 17:09
Script: /board/memberslist.php?sid=4d383500f766283bb6982414876efaf7
Referer: