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 ('e7b8d0daf81a6f8cd67be33b6fb03dc4','0','18.119.130.231','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716100771','thread.php?goto=firstnew&threadid=1503&sid=3b5c60dbed14c6e8677ba587a3fd6c74','0','0','')
mysql error: Duplicate entry 'e7b8d0daf81a6f8cd67be33b6fb03dc4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.25
php version: 5.4.45
Date: 19.05.2024 @ 08:39
Script: /thread.php?goto=firstnew&threadid=1503&sid=3b5c60dbed14c6e8677ba587a3fd6c74
Referer: