Crashed, won't open, re-download didn't fix

I've had this app for a couple of weeks and love it. But yesterday I went to use it and it wouldn't open. I can't get past the opening screen before it shuts down. I went out to the app store and re-downloaded it thinking that would solve it (based on other posts) but it still won't open. This is incredibly frustrating.

PLEASE advise on what I should do!

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