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 ('690b5d2217e9fac08a4caed2f45458b1','0','18.223.124.244','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714949778','usercp.php?action=buddy&add=1&sid=d2bc1294b6707cf8b97d56d2a5458375','0','0','')
mysql error: Duplicate entry '690b5d2217e9fac08a4caed2f45458b1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 00:56
Script: /usercp.php?action=buddy&add=1&sid=d2bc1294b6707cf8b97d56d2a5458375
Referer: http://wehrbauten.de/usercp.php?action=buddy&add=1&sid=d2bc1294b6707cf8b97d56d2a5458375