Has anyone else here have faced any issue in buying tickets using the miles?

The reason of why i am asking this because each time when i do a search i get different erroe messages like no seat available the Fly Delta app cannot connect... Uh-oh! We're sorry, but no results were found for your search. and messages like this and this is happening not only to the destination that i want to go but also a lot destination and are clasic destinations

Is Delta facing any technical issue at the moment?

I tried to contact Delta by phone but nobody answer i have been in the phone for an hour waiting for a rep and no rep is available