Hmm! That is enough space! Do you have the first build downloaded? It might help to delete that and then attempt to download the second.
Yes I deleted build one, also when I first downloaded build 1 it said this maker was not trusted but my other vns can download wuthout that warning so maybe it has something to do with security
How old is your device? I've found it might be an issue with Android struggling to open/read APK files
WAIT SO I DELETED THE WHOLE APP AND INSTALLED IT AGAIN NOW IT WORKS
Excellent!