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 ('eb4c9fa0d22d6bb1e62045f7b738fba2','0','216.73.216.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1755696588','thread.php?goto=lastpost&threadid=1137','0','0','')
mysql error: Duplicate entry 'eb4c9fa0d22d6bb1e62045f7b738fba2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 20.08.2025 @ 15:29
Script: /thread.php?goto=lastpost&threadid=1137
Referer: