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 ('73def0ca79f4f68a64f302be492f69ba','0','3.138.138.144','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714689919','board.php?boardid=33164&sid=165d262c8b46c7be4ed39a953ac7f775','0','0','')
mysql error: Duplicate entry '73def0ca79f4f68a64f302be492f69ba' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 03.05.2024 @ 00:45
Script: /board.php?boardid=33164&sid=165d262c8b46c7be4ed39a953ac7f775
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33164&sid=165d262c8b46c7be4ed39a953ac7f775