Posts from The map cannot be played. Auto-translated

I created a map, but I can't play it. I need to test it. The map is in the list of maps in the game, but it doesn't work. What should I do?
I'm working on the "To Arms!" campaign.

More details are needed. Screenshots of the error would be helpful. And in general, you should have left the question in this thread instead of creating a new one.

There are no errors except for
PLAYER 2 has no town
But this is not an error, but rather an oversight, and I will leave it as is; I will post a screenshot later.