SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('52952e12975972c2e9845f5866e27920','0','3.145.113.9','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744804758','thread.php?hilightuser=0&threadid=1750&threadview=0','0','0','')
mysql error: Duplicate entry '52952e12975972c2e9845f5866e27920' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 16.04.2025 @ 13:59
Script: /thread.php?hilightuser=0&threadid=1750&threadview=0
Referer: http://gttempel.de/thread.php?hilightuser=0&threadid=1750&threadview=0