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 ('fed667454557e38deea204ed4067cef2','0','18.191.202.45','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714296308','formmail.php?userid=5040&sid=726d23768c4e0c769a80a017743886c1','0','0','')
mysql error: Duplicate entry 'fed667454557e38deea204ed4067cef2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 28.04.2024 @ 11:25
Script: /formmail.php?userid=5040&sid=726d23768c4e0c769a80a017743886c1
Referer: