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 ('487996c8f0d70c6fbfc91a3f15edee44','0','216.73.216.235','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1749286345','thread.php?goto=firstnew_thread&threadid=992','0','0','')
mysql error: Duplicate entry '487996c8f0d70c6fbfc91a3f15edee44' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 07.06.2025 @ 10:52
Script: /thread.php?goto=firstnew_thread&threadid=992
Referer: