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 ('24ac8068f68215e62255f15e614b8949','0','18.188.70.255','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715004129','thread.php?postid=26328','0','0','')
mysql error: Duplicate entry '24ac8068f68215e62255f15e614b8949' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 06.05.2024 @ 16:02
Script: /thread.php?postid=26328
Referer: