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 ('bc2d587c9149590ccabce6e1446ff82e','0','18.220.137.164','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714677716','board.php?boardid=33173&sid=f4559d0ac1907ad292261d4697ef727f','0','0','')
mysql error: Duplicate entry 'bc2d587c9149590ccabce6e1446ff82e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 02.05.2024 @ 21:21
Script: /board.php?boardid=33173&sid=f4559d0ac1907ad292261d4697ef727f
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33173&sid=f4559d0ac1907ad292261d4697ef727f