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 ('2ac214c0f732e04769a47403761e12da','0','18.189.22.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714582054','memberslist.php?sid=a9c0b3d37b1f96f1df136b89e91397e4','0','0','')
mysql error: Duplicate entry '2ac214c0f732e04769a47403761e12da' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 01.05.2024 @ 18:47
Script: /memberslist.php?sid=a9c0b3d37b1f96f1df136b89e91397e4
Referer: