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 ('e8f30782d4e5bf43d39e8701ced6b34d','0','18.191.44.23','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714824557','thread.php?threadid=2505&sid=bcb8ba57f5cb81862449ac140b8ca228','0','0','')
mysql error: Duplicate entry 'e8f30782d4e5bf43d39e8701ced6b34d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 14:09
Script: /thread.php?threadid=2505&sid=bcb8ba57f5cb81862449ac140b8ca228
Referer: