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 ('c12e4e8a72d436d3b74b4731456f272b','0','3.143.168.172','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714911295','addreply.php?action=quote&postid=173','0','0','')
mysql error: Duplicate entry 'c12e4e8a72d436d3b74b4731456f272b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.05.2024 @ 14:14
Script: /addreply.php?action=quote&postid=173
Referer: