It seems that you have spelt Illinois wrong in several places...
You have spelt it Illinios in the Central USA continent bracket, and Illinios in the Winconsin borders so it cannot see a country entry because it is looking for Illinios instead of Illinois.
So... To get rid of each of these Errors and Warnings:
1)Error: Country Illinios appears in continent Central USA but does not have its own country entry
Change the spelling from Illinios to Illinois in the Central USA continent bracket
2)Error: Country Wisconsin has border Illinios that does not have its own country entry
Change spelling from Illinios to Illinois in Winconsin's borders
3)Error: Country Michigan has border Illinios that does not have its own country entry
You've spelt it Illinios again! Change the spelling and then everything should be sorted
That should clear up the warnings as well... If that makes sense, in short just check all the spellings of Illinois

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Lookin Good!
