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 ('0307c3e0461a00176b29bc3bd9e104c6','0','3.20.205.228','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714838469','board.php?boardid=257&sid=8b5982d6f3b8a3f79c96b8dcae957d6f','0','0','')
mysql error: Duplicate entry '0307c3e0461a00176b29bc3bd9e104c6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 18:01
Script: /board.php?boardid=257&sid=8b5982d6f3b8a3f79c96b8dcae957d6f
Referer: