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
No game was booted in your log. If you are experiencing a crash then do not open citra again until after you posted the log as it gets purged when you reopen citra.
For more information, see How to Upload the Log File
The log file is incomplete. Make sure you follow the steps carefully:
Open Citra, then go to File>Open Citra Folder (Citra>Open Citra Folder if on MacOS) and open up the log folder. Now keep that open in the background.
Launch your game and encounter the problem; crash/slowdown/glitch and close Citra if it doesn’t do so by itself. Do not restart Citra as that will wipe the log of important information!