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 ('8f0239402ed890e93da7b4ae3e0f1e37','0','18.191.223.123','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715090622','board.php?boardid=25&sid=c65013ca58ceece903fdeadc723aa290','0','0','')
mysql error: Duplicate entry '8f0239402ed890e93da7b4ae3e0f1e37' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 16:03
Script: /board.php?boardid=25&sid=c65013ca58ceece903fdeadc723aa290
Referer: