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 ('d386993ea74ea2428bfde59eb234bd2e','0','18.191.208.181','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716332114','addreply.php?action=quote&postid=188529&sid=b1ee6f479cde89de3697197e9acb1fcb','0','0','')
mysql error: Duplicate entry 'd386993ea74ea2428bfde59eb234bd2e' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 21.05.2024 @ 18:55
Script: /wbb2/addreply.php?action=quote&postid=188529&sid=b1ee6f479cde89de3697197e9acb1fcb
Referer: