The Whole App Has Stopped Working

Whenever I try to open musescore, the app doesn't respond as it should, and instead only appears on the taskbar. I can't upload any photos of it, as the one from my camera has a file size too large for forums, and I can't screenshot it as whenever I press any buttons, the indication (which happens when i hover my mouse over the app icon) disappears. The whole app is now unusable and I have no idea why, this has never happened before. Any help would be appreciated