SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('8ee95fc46191bb743f8bd4e612269dc2','0','3.129.67.26','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714245846','board.php?boardid=188&sid=07b3c781060a7acb4eb4594bf08d378d','0','0','')
mysql error: Duplicate entry '8ee95fc46191bb743f8bd4e612269dc2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 27.04.2024 @ 21:24
Script: /board.php?boardid=188&sid=07b3c781060a7acb4eb4594bf08d378d
Referer: http://wehrbauten.de/board.php?boardid=188&sid=07b3c781060a7acb4eb4594bf08d378d