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 ('970d908b3927a864f4a39dc82f0b7996','0','216.73.216.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1755671320','thread.php?goto=lastpost&threadid=2517','0','0','')
mysql error: Duplicate entry '970d908b3927a864f4a39dc82f0b7996' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 20.08.2025 @ 08:28
Script: /thread.php?goto=lastpost&threadid=2517
Referer: