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 ('baf7e5b28bb5f38a2e7003c6ad8c6dc1','0','18.117.188.64','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715536849','addreply.php?postid=4755&sid=e66bd62b29e086169e2d102c98b2a051','0','0','')
mysql error: Duplicate entry 'baf7e5b28bb5f38a2e7003c6ad8c6dc1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 20:00
Script: /addreply.php?postid=4755&sid=e66bd62b29e086169e2d102c98b2a051
Referer: http://wehrbauten.de/addreply.php?postid=4755&sid=e66bd62b29e086169e2d102c98b2a051