It sounds like you have an extra GLA AI player in the player list. Go to the player list I see if you have a "PlyrGLA" player there. (This player gets created when you want to place an object in the GLA army if you haven't yet added the skirmish players.) If you see a "PlyrGLA" player along with a "SkirmishGLA" player, then delete the "PlyrGLA" player. It should work fine if that's the problem.
If this doesn't help, then upload your map in a ZIP folder (To create a ZIP folder in window explorer, right click in the window to open up a shortcut menu, move you mouse over "New>", & click on "Compressed (zipped) Folder". Now go click & drag you map folder over the ZIP folder, a copy of your map will be placed in the ZIP folder.) so I can look at it.
Me Myself And Pi wrote: