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 ('aec63af1c32b24bac0bb6fab53495200','0','216.73.216.7','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1751054878','usercp.php?action=addsubscription&threadid=2287','0','0','')
mysql error: Duplicate entry 'aec63af1c32b24bac0bb6fab53495200' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 27.06.2025 @ 22:07
Script: /usercp.php?action=addsubscription&threadid=2287
Referer: