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 ('4f09e12bcb0fc0484e77b7de8e8dd73b','0','3.15.214.178','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716073983','profile.php?userid=14600&sid=45f134705da0a77dd5b250c378291f12','0','0','')
mysql error: Duplicate entry '4f09e12bcb0fc0484e77b7de8e8dd73b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 19.05.2024 @ 01:13
Script: /profile.php?userid=14600&sid=45f134705da0a77dd5b250c378291f12
Referer: