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 ('8ff2aaecfb9df8bc22b01bedbaeea7f5','0','3.141.100.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714215077','board.php?boardid=33182&sid=55d1c327d8dbd1b3f57efa81ef651583','0','0','')
mysql error: Duplicate entry '8ff2aaecfb9df8bc22b01bedbaeea7f5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 27.04.2024 @ 12:51
Script: /board.php?boardid=33182&sid=55d1c327d8dbd1b3f57efa81ef651583
Referer: