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 ('eeb136eb916c5a5c5460921cbdb7e962','0','18.190.153.63','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715570505','jgs_portal_box.php?id=28&sid=e6882b552b8bbbcc1a3e859fb2a017cb','0','0','')
mysql error: Duplicate entry 'eeb136eb916c5a5c5460921cbdb7e962' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 05:21
Script: /jgs_portal_box.php?id=28&sid=e6882b552b8bbbcc1a3e859fb2a017cb
Referer: http://wehrbauten.de/jgs_portal_box.php?id=28&sid=e6882b552b8bbbcc1a3e859fb2a017cb