Fatal error on pkmn sun

guys why when i try to open pokemon sun on citra, it says Fatal error…
i followed the guide of How to upload the log file but i dont know how to put the citra log file here in this topic.
How can I do it?

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.

You can drag-and-drop the log file into the typing box to upload it. Alternatively you can use the Upload button to manually select it from your log folder: