SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('5b4d3c0b7f645e3f5caaa9e8618711f7','0','18.117.189.90','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745320576','thread.php?postid=29375','0','0','')
mysql error: Duplicate entry '5b4d3c0b7f645e3f5caaa9e8618711f7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.04.2025 @ 13:16
Script: /thread.php?postid=29375
Referer: http://gttempel.de/thread.php?postid=29375