If you already purchased B4i, you must be a licensed user in this forum.
You can try to open the project with B4i and find what are the errors come out.
It should work in B4i with less effort if it is exported correctly.
If it is not exported "correctly" then it is a matter of adding back the global variables from B4A main module to B4i project main module.
The real concern would be the libraries that only available for B4A (not B4X) would not work in B4i.
My answer is the project doesn't need to be converted. ... snip ... The real concern would be the libraries that only available for B4A (not B4X) would not work in B4i.
(And also that the app might rely on functionality that differs between the operating systems. We don't know, not much is known about the app at this time.)