NextCloud Doesn't Work?

I logged in the first time and downloaded the app on IOS.
I cannot upload anything to NextCloud from the App for an unknown reason. It just says waiting upload 50 and never uploads and I have no idea where the “50” comes from.
Additionally, I went back and tried to login on the desktop of NextCloud and now it wont even let me in. I know the password and user are correct. I tried to reset the password but I never received the password reset email. This is going to need a lot of work to get running smoothly it feels like. Some big errors that can result in lost data.