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 ('6f9aa682d739f28700a7ff989dc21012','0','3.135.249.178','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716363783','team.php?sid=dcc07234c890ca9ff101f42f06d75647','0','0','')
mysql error: Duplicate entry '6f9aa682d739f28700a7ff989dc21012' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.15-MariaDB-cll-lve-log
php version: 5.6.40
Date: 22.05.2024 @ 07:43
Script: /team.php?sid=dcc07234c890ca9ff101f42f06d75647
Referer: