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 ('9b463958df29fa62c53ac0bf840e9f43','0','3.147.55.42','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715674002','board.php?boardid=682&sid=3c35281abb6206fbc8a70877be38f1fd','0','0','')
mysql error: Duplicate entry '9b463958df29fa62c53ac0bf840e9f43' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 10:06
Script: /board.php?boardid=682&sid=3c35281abb6206fbc8a70877be38f1fd
Referer: