Hi @hugobaur, welcome to the community,
You should uninstall the application and then reinstall it. It would probably work.
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edited on 26-08-2018 00:01 by Daniele_UPC
it was working smooth on my iPad Pro when it was running on ios 10 however as I have updated to ios 11.3 whenever now I am opening the app it only loads a blank screen on the start up and crashes after a while automatically. How do I fix it?