Android Apk Not Installing

[Friskyblaze]

So I have had this problem before but could never fix it, i tried many ways but they all have failed me. The Apk Used to work fine on my old phone but i sold that for a new one (Samsung J7 Prime 8.1)

Now it just gives me a "Apk Can Not Be Installed" error every time i try to install the apk. I am not sure if its how the apk is built/coded that it needs a newer version of Android OS?

If anyone can help me figure this out, that would be very helpful,