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 ('305f4e1d7596e6078e900fe7f2aecc1e','0','3.12.166.61','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715567635','board.php?boardid=119&sid=034fc299a08c326ef636733d58cfa85f','0','0','')
mysql error: Duplicate entry '305f4e1d7596e6078e900fe7f2aecc1e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 04:33
Script: /board.php?boardid=119&sid=034fc299a08c326ef636733d58cfa85f
Referer: