SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('176d774bbe4c0b42d54f5a58afec3d75','0','3.16.76.43','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714416092','thread.php?goto=firstnew_thread&threadid=21','0','0','')
mysql error: Duplicate entry '176d774bbe4c0b42d54f5a58afec3d75' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 29.04.2024 @ 20:41
Script: /thread.php?goto=firstnew_thread&threadid=21
Referer: