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 ('3ccd97e876ba15b580d938a8dbd38bdd','0','18.118.227.69','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714122666','board.php?boardid=25&sid=58a3fb8f7ffef5d813c5e4626ebaae0c','0','0','')
mysql error: Duplicate entry '3ccd97e876ba15b580d938a8dbd38bdd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 26.04.2024 @ 11:11
Script: /board.php?boardid=25&sid=58a3fb8f7ffef5d813c5e4626ebaae0c
Referer: