Cant connect to server

Worthless app. Doesnt matter my cellular reception or wifi signal, it gives the error "cant connect to server" and wont let me sign in, scan receipts or accrue points. After battling this for several months, uninstalling and reinstalling app, trying on another phone, asking for assistance from store and customer service line, I finally gave up, and started going across the parking lot to Costa Vida instead of cafe rio. They have the same food and a working rewards app.

Raddoc2009 about Cafe Rio, v1.2