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 ('b5d568696dafb612c113eb4e600dc100','0','3.137.185.180','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714395780','formmail.php?userid=74&sid=fa1d7196a3aa448d0f4affbe07c49e1b','0','0','')
mysql error: Duplicate entry 'b5d568696dafb612c113eb4e600dc100' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 29.04.2024 @ 15:03
Script: /formmail.php?userid=74&sid=fa1d7196a3aa448d0f4affbe07c49e1b
Referer: