Help PLEASE!!!

Hello everyone! I'm new to MuseScore just so you know.

A couple days ago I was working on an arrangement of The Firebird Suite (1919) and I was making very good progress and I was happy with my work so far. And then, today I click on the open score... button in the start center and I click The Firebird Suite but then I get a pop up saying that MuseScore can't read my file. Specifically, it said: Cannot read file C:/Users/*my name*/Documents/MuseScore2/Scores/The_Firebird_Suite_(1919).mscz:

Can anyone please give me any tips on how to possibly recover my score?

Thanks!