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 ('c763efce1a0fb1fb36de8e1e8c0ab6b8','0','216.73.216.86','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1749364472','thread.php?goto=firstnew_thread&threadid=1033','0','0','')
mysql error: Duplicate entry 'c763efce1a0fb1fb36de8e1e8c0ab6b8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 08.06.2025 @ 08:34
Script: /thread.php?goto=firstnew_thread&threadid=1033
Referer: