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 ('6ae9ac07295b5faf8da506a4177ec54b','0','3.135.185.194','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714762683','thread.php?threadid=640&goto=lastpost&sid=6cf3d3885ed693beb27e011492017f58','0','0','')
mysql error: Duplicate entry '6ae9ac07295b5faf8da506a4177ec54b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 20:58
Script: /thread.php?threadid=640&goto=lastpost&sid=6cf3d3885ed693beb27e011492017f58
Referer: