I just installed the new Gotham Sports app to watch local NY sports. I can't login to the app. It fills in my account name (which is my email address), and when I click "Login or Register", I get the following:
"It appears your email is associated with a social login. Please login using the mobile app or go to gothamsports.com."
I have one and only one email address, and I use it (with different passwords) for multiple accounts, including the YES Network, which is being replaced by Gotham Sports.
The phone (Android) app and the website work fine.