Qatar has been accused by other Middle East countries of supporting IS. As a result, a number of airlines in that region have suspended flights to Doha and banned Qatar Airways aircraft from their airspace. Kuwait, not involved in the dispute, has offered to mediate at talks to resolve the situation.
I imagine that this will be resolved quickly to avoid tarnishing the reputation of Qatar Airways, not to mention the extra cost involved in the slight detours over Iran and Iraq. Mr Trump has not got involved, yet.....