Вот, такая же проблема, дальше играть невозможно(

Translation (Russian -> English) according to https://www.deepl.com/translator
rebellious heath
Who has info, what to do with the disobedient wasteland, given that it is impossible to put a
garrison, writes that the increase in subordination is disabled?

I assume you mean, you can't change the garrison setting for a region. While I cannot say anything about that, because it works perfectly fine for me, I can say something about the "subordination":
It seems that it is disabled if the garrison is not fully manned. So try to get more man power and having enough equipment is also a good idea.
I hope you two understood me well enough despite of the language barrier.

Yes, I understand you, thank you very much, maybe your advice will help me!
But, in the future, of course, I would like the developers to add the function of nationalizing the territory

Well, as the Reformers you can build Power Grids after Capturing Gecko (Vault City) and doing a focus. You can then connect the region to the power grid once built and make it into a core state.

Thank you so much! I completely forgot about it .. (

Ha ha, glad I could help.