First time using citra here and things didn't go well

It says invalid ROM file when I used .3ds and my screen went black and nothing happen when I used .cia

System Information

Diagnostic Log
Upload your log file as an attachment by dragging & dropping.
Processing: citra_log.txt…

In order for us to provide better support, we need to see the log generated by citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File

I solved it nvm…
(just reaching min word caps)