How to use package "karnaugh-map" on overleaf

I was trying to make a karnaugh map for an assignment and I came across this package:
https://ctan.org/pkg/karnaugh-map

I tried to use it in Overleaf where I write my LaTeX code with one of the examples given in the documentation and I got this:

Why is that happening? Do I have to do something else?

Edit: I found out why it is happening, it’s because I’m using the following packages in order to type in Greek.

usepackage[utf8]{inputenc}

usepackage[greek,english]{babel}

How can I maybe fix it?