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 ('ba78f9afdb3c176a0870bd8f56eaa287','0','18.221.4.218','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745259867','thread.php?hilightuser=0&threadid=1044&threadview=1','0','0','')
mysql error: Duplicate entry 'ba78f9afdb3c176a0870bd8f56eaa287' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 21.04.2025 @ 20:24
Script: /thread.php?hilightuser=0&threadid=1044&threadview=1
Referer: http://gttempel.de/thread.php?hilightuser=0&threadid=1044&threadview=1