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 ('500d3b5b2d7f91ba6955f1ceac9e4a03','0','18.224.246.203','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715240534','jgs_galerie.php?sid=e97cc0f7b1b932ea627565b976752765','0','0','')
mysql error: Duplicate entry '500d3b5b2d7f91ba6955f1ceac9e4a03' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 09:42
Script: /jgs_galerie.php?sid=e97cc0f7b1b932ea627565b976752765
Referer: http://wehrbauten.de/jgs_galerie.php?sid=e97cc0f7b1b932ea627565b976752765