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 ('9eae225a26c3b29c3a72ade10e8704e2','0','3.128.171.203','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716107785','board.php?boardid=3&sid=595ff8ce11ddc92958c916177e963861','0','0','')
mysql error: Duplicate entry '9eae225a26c3b29c3a72ade10e8704e2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 19.05.2024 @ 10:36
Script: /board.php?boardid=3&sid=595ff8ce11ddc92958c916177e963861
Referer: