Problem with game

Hello again i again have problem but with game i wanna install pokemon and once installed it disappears immediately (game: Pokemon Ultra Moon)

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.

Are you sure you’re installing the actual game? Not just an update file?
Check the size of your .cia file. It should be around 3.6gb for Ultra Moon.
If it’s not the correct size, Please redump using our dumping guides:
Dumping Game Cartridges
Dumping Installed Titles
Make sure you have enough room on your SD-Card.