SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl 2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('684cd0bd1872b7f155c2b5888764632d','0','3.145.173.112','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713914337','login.php?sid=21b1d1a860a0f79e0e9ae55ee02c36ae','0','0','')
mysql error: Duplicate entry '684cd0bd1872b7f155c2b5888764632d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 24.04.2024 @ 01:18
Script: /login.php?sid=21b1d1a860a0f79e0e9ae55ee02c36ae
Referer: