Repeated "Unknown Error" Warninga

Just updated to the latest version of the app and now it wont open on my iPhone 4S (version 7 of iOS). The app starts to open (blue screen with Sugar WOD logo) then says that an unknown error has occurred I am left at the login screen, then it wont login using my username and password as I get yet another error stating that an unknown error has occurred and to please try again. Not happy! App is completely unusable. Please fix.

Frog1423 about SugarWOD