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 ('a5e16097eb3f58fe9d32f4e6671ba7e7','0','3.16.203.107','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744861406','thread.php?postid=34809','0','0','')
mysql error: Duplicate entry 'a5e16097eb3f58fe9d32f4e6671ba7e7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 17.04.2025 @ 05:43
Script: /thread.php?postid=34809
Referer: http://www.gttempel.de/thread.php?goto=lastpost&threadid=2121