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 ('2381a4fc620e66f54b65771e4c5e5c47','0','52.14.85.76','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714542698','board.php?boardid=33232&sid=bf749b1d9ab6210c4241d5ef249deecb','0','0','')
mysql error: Duplicate entry '2381a4fc620e66f54b65771e4c5e5c47' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 01.05.2024 @ 07:51
Script: /board.php?boardid=33232&sid=bf749b1d9ab6210c4241d5ef249deecb
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33232&sid=bf749b1d9ab6210c4241d5ef249deecb