Faction Destroyed at Start of Campaign

[Bagabigna]

Hello!

In the mod that I'm making, I'm converting the Saxons into the Cuman Khanate (which is going smoothly) and when I added them to the campaign map and start a campaign, I get a message saying "faction destroyed." It's the first time that I encountered such a problem. What are some ways to trouble shoot it?

[Lusitanio]

Did you gave them a settlement?

[Bagabigna]

Yes I did. I even removed the army that was in the coordinates as well.

[Frunk]

You will also need at least a faction leader character, with at least one unit in his army.