Ok, I see your crash report. Your device has problem with loading native c++ library(probably, there is Uknown source line, but UnsatisfiedLinkError talks about problem with loading c++ library ). That’s weird.
java.lang.UnsatisfiedLinkError:
at java.lang.Runtime.loadLibrary(Runtime.java:367)
at java.lang.System.loadLibrary(System.java:1076)
at magiclib.collection.CollectionActivity.init(Unknown Source:0)
at bruenor.magicbox.free.uiGameStarterActivity.onCreate(uiGameStarterActivity.java:61)
You must have trouble with other programs too. I’ll try google, but I don’t see any reason why native lib should not be loaded.
EDIT:
Please can you try this version :
https://magicbox.imejl.sk/wp-content/uploads/sharedata/MagicBox_v53-debug.apk
this is unaligned free version. This means that strings inside application are not packed. Maybe it affects library name and this causes problems with loading.
If possible, could you send crash report from this beta application? Maybe it will not work, because you didn’t download it from google play. But it can explain what hides behind “(Unknown Source:0)”. If it will not work then I can add you to group of testers for free version and you can download it from google play