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 ('808c28b4445e01292a656aab923144df','0','18.224.180.100','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745279912','thread.php?hilightuser=0&threadid=927&threadview=0','0','0','')
mysql error: Duplicate entry '808c28b4445e01292a656aab923144df' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.04.2025 @ 01:58
Script: /thread.php?hilightuser=0&threadid=927&threadview=0
Referer: http://gttempel.de/thread.php?hilightuser=0&threadid=927&threadview=0