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 ('5aec537444a550d1c47a55e8c1e5dbe7','0','3.142.99.115','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1747646115','addreply.php?action=quote&postid=350857','0','0','')
mysql error: Duplicate entry '5aec537444a550d1c47a55e8c1e5dbe7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.73-1
php version: 5.3.3-7+squeeze19
Date: 19.05.2025 @ 11:15
Script: /waller/addreply.php?action=quote&postid=350857
Referer: