MT4 Android App not working?

 
I log into my accounts and it shows the right info, but as soon as I try to open a trade it malfunctions: it doesn't even show me the currency of the trade I'm about to open, nor does it let me change it. I've been using this app for over a year and it's never given me any trouble, so I don't know what's happening. I tried uninstlling/reinstalling it several times now, and still no improvement. Anyone else having this problem?
 

My MT4 in andriod is not working. I tried to reinstal it from play store but it is not available there. How to resolve this proble