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 ('b716d0285997d4548570b7bdb0e45342','0','3.144.97.189','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715114428','formmail.php?userid=8393&sid=db2b1c21c5eda6269d3614f96c081e59','0','0','')
mysql error: Duplicate entry 'b716d0285997d4548570b7bdb0e45342' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 07.05.2024 @ 22:40
Script: /formmail.php?userid=8393&sid=db2b1c21c5eda6269d3614f96c081e59
Referer: