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 ('bc3b15b3b4d8e961fe0e6aa4e0947ae1','0','3.144.193.129','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715049796','board.php?boardid=279&sid=d19bdd65013529496431c073434bd8f6','0','0','')
mysql error: Duplicate entry 'bc3b15b3b4d8e961fe0e6aa4e0947ae1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 04:43
Script: /board.php?boardid=279&sid=d19bdd65013529496431c073434bd8f6
Referer: