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 ('9015965d5498bda92096cbdf253dac13','0','3.135.207.129','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714660148','memberslist.php?sid=fe10bdbe204b2862c1f1264564bd4372','0','0','')
mysql error: Duplicate entry '9015965d5498bda92096cbdf253dac13' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 16:29
Script: /memberslist.php?sid=fe10bdbe204b2862c1f1264564bd4372
Referer: