As suggested, call the airline and provide your record locator number to determine your status. Since it's a Sunday, IT may be working on their website and causing temporary issues. Hopefully all is well.
When this is all behind you, consider finding a TA that provides service on weekends. My TA has office hours on weekdays; however, her agency is open 7 days a week from 9 AM to 8 PM. For an emergency outside regular office hours, I have her cell number for calls and texts.