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 ('1b1c226c871ad85f650d7175502d17b1','0','18.118.12.222','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714004595','board.php?boardid=398&sid=4ab036917fedfc9f7a983e3ca58fe8b9','0','0','')
mysql error: Duplicate entry '1b1c226c871ad85f650d7175502d17b1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 25.04.2024 @ 02:23
Script: /board.php?boardid=398&sid=4ab036917fedfc9f7a983e3ca58fe8b9
Referer: