In the mod manager, if you click on "file" then "select configuration", it's pointing correctly to the Madden20.exe wherever your installation is? (I know this seems like a simple question, and I don't mean to be insulting or anything, there have been plenty of times where I've overlooked something like that myself)
Beyond that, I'm not really sure what else to try. Reboot the computer, reinstall the latest mod manager (if you haven't already), not sure. Sorry, man, I know stuff like this is frustrating. Try the discord also as I know there are people in there much more knowledgeable that I am.
I just thought of one more thing. Is your Madden install updated with the latest patch? The mod was made for the latest patch and I don't know if there'd be problems from earlier versions.