SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('9436d3b4ad69e50b5ec3f5cb0752a5fb','0','3.138.118.250','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714464711','editpost.php?postid=304804&sid=aad03d9c517c2c2510566fe1032a6f06','0','0','')
mysql error: Duplicate entry '9436d3b4ad69e50b5ec3f5cb0752a5fb' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 30.04.2024 @ 04:11
Script: /wbb2/editpost.php?postid=304804&sid=aad03d9c517c2c2510566fe1032a6f06
Referer: