It may be the internet. When I'm on school Wi-Fi, it doesn't work either. I'm sorry you came across that issue. :(
But I was playing at home, with good wi-fi.
It could be your cookies or your device. Clearing the cookies might fix the problem. Restarting your device might also work. These are just some ideas, I'm not sure if it will work or not, I usually come across this bug when on mobile.
