I was only brought here by the mention from
@Anth James but I'll say this anyway,
1. You need to be far less irritated and over dramatic for people to help you
2. You need to stop confusing different mod managers
3. Without any of these mod managers or tools, editing FIFA and then FC would have been impossible, at least show some gratitude
4. You should use FIFA Mod Manager (the latest one from the website) to play mods with FC, nothing else will work. If that is failing to launch, thats not a problem of Anth, that is a problem to take up with the tool dev.
5. Your problem is most likely due to your install paths and/or anti virus blocking the Anti Cheat bypass. I dont use FIFA Mod Manager but my own personal tool but I know 99.9% of people use FMM without any issues or if they do get issues, there are workarounds out there. Which is why I always recommend it.