SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.1.3): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('a2d23fb4771daa9404b63abf67535fe5','0','216.73.217.35','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1783048780','thread.php?goto=lastpost&threadid=15378&sid=9c230167df891e97c2b1f3a4d7b09652','0','0','')
mysql error: Duplicate entry 'a2d23fb4771daa9404b63abf67535fe5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.11.11-MariaDB-0+deb12u1
php version: 5.6.40-81+ubuntu22.04.1+deb.sury.org+1
Date: 03.07.2026 @ 05:19
Script: /thread.php?goto=lastpost&threadid=15378&sid=9c230167df891e97c2b1f3a4d7b09652
Referer: https://frozen-flame.de/thread.php?goto=firstnew_thread&threadid=15378