SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('fdb9f8b7f5d262e031f47be26ffd85e1','0','3.133.79.70','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714522657','board.php?boardid=33181&sid=a8a175451fc9dd5b7447d9a868a8a16e','0','0','')
mysql error: Duplicate entry 'fdb9f8b7f5d262e031f47be26ffd85e1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 01.05.2024 @ 02:17
Script: /board.php?boardid=33181&sid=a8a175451fc9dd5b7447d9a868a8a16e
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33181&sid=a8a175451fc9dd5b7447d9a868a8a16e