Morgan Wallen is rescheduling a few shows on the 2024 leg of his One Night at a Time tour due to an undisclosed illness. The country singer says he “powered through being sick” during his first night in Tampa, Fla. on July 11, but would be unable to perform the second night on July 12. The post was shared mid-afternoon the night of the show, which means fans didn’t have much notice they would not be seeing the “I Had Some Help” singer just a few hours later. Wallen also canceled the following week’s shows — moving all dates to October. “I hate to reschedule shows but I powered through being si…