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 ('170b4c4a04cc0c0ac7d6a932e4d543aa','0','18.221.227.158','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1746549174','addreply.php?action=quote&postid=84698','0','0','')
mysql error: Duplicate entry '170b4c4a04cc0c0ac7d6a932e4d543aa' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.41
php version: 5.3.1
Date: 06.05.2025 @ 18:32
Script: /plauscherl/addreply.php?action=quote&postid=84698
Referer: