SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('6aab2feae41f0ce2ee1bae68c06332e3','0','3.144.11.172','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744735551','board.php?boardid=149','0','0','')
mysql error: Duplicate entry '6aab2feae41f0ce2ee1bae68c06332e3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 15.04.2025 @ 18:45
Script: /board.php?boardid=149
Referer: http://gttempel.de/board.php?boardid=149