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 ('6fdb45f9d44301898e6d55fba2f1a0a6','0','3.18.104.213','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716334805','profile.php?userid=5180&sid=857c91046582c64433c237e1309721a7','0','0','')
mysql error: Duplicate entry '6fdb45f9d44301898e6d55fba2f1a0a6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 22.05.2024 @ 01:40
Script: /profile.php?userid=5180&sid=857c91046582c64433c237e1309721a7
Referer: