SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('96408e6fda2af0fd1b55fffb22a1f3d0','0','3.149.26.246','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715308503','thread.php?threadid=36&goto=lastpost&sid=d2c975ec20176d46f0fbf3b9d92ed467','0','0','')
mysql error: Duplicate entry '96408e6fda2af0fd1b55fffb22a1f3d0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 10.05.2024 @ 04:35
Script: /thread.php?threadid=36&goto=lastpost&sid=d2c975ec20176d46f0fbf3b9d92ed467
Referer: