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 ('318584f3d8194d95b85c828f2166c040','0','3.17.5.68','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714948898','register.php?sid=042acb9cdf933006c09eff23b11d5c0c','0','0','')
mysql error: Duplicate entry '318584f3d8194d95b85c828f2166c040' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 00:41
Script: /register.php?sid=042acb9cdf933006c09eff23b11d5c0c
Referer: