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 ('50e4c7758bd827dfb9a8e783a844f8da','0','3.139.107.241','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715262865','memberslist.php?sid=de9bb050b6314703b48893f5b0a9476c','0','0','')
mysql error: Duplicate entry '50e4c7758bd827dfb9a8e783a844f8da' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 15:54
Script: /memberslist.php?sid=de9bb050b6314703b48893f5b0a9476c
Referer: