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 ('ec84172827e042120755ea48b413d55b','0','3.137.161.222','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714580882','addreply.php?action=quote&postid=84419&sid=0cd18ea058e4727420c735fdf9ff79aa','0','0','')
mysql error: Duplicate entry 'ec84172827e042120755ea48b413d55b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 01.05.2024 @ 18:28
Script: /addreply.php?action=quote&postid=84419&sid=0cd18ea058e4727420c735fdf9ff79aa
Referer: