If it's android it might take a bit to load, but other than that I have no clue, that's nothing that has been reported before.
Maybe something went wrong with the download, did you try reinstalling/redownloading the game?
Yes, I tried downloading/Installing/ Uninstalling 4 times, but it opens and is just showing the introduction page where you have the options start preference etc. But when I try to press the start or any other options, nothing happens???? I was really looking forward to play this, My phone is a Pixel 4 XL and I don't have any issues with the space... I've still got 80 GB free.... 
That's some weird shit indeed...
Nobody ever reported anything like that and I honestly have no clue what could cause it atm.
I have an update ready though that uses a newer engine, maybe that one will work for you.
I hope I can upload the new version in a few days, I'm just waiting for the support to give me a bit more space for the upload.