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 ('e99e0eb775d94718d15d2856271dc93e','0','3.145.15.1','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714992718','register.php?sid=0cea94910faa543211c9d139a43537e3','0','0','')
mysql error: Duplicate entry 'e99e0eb775d94718d15d2856271dc93e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 12:51
Script: /register.php?sid=0cea94910faa543211c9d139a43537e3
Referer: http://wehrbauten.de/register.php?sid=0cea94910faa543211c9d139a43537e3