Should I be concerned with the IRS2Go app saying it can’t provide Me with information with my return?

The other day I saw my refund was accepted by the IRS. Now, periodically, I check that mobile app, it says that it can’t provide me information regarding the status of my refund. Should I be worried or concerned ? When I try to call the number that’s on it, says that live assistance is not available -&- resume as quickly as possible.