Congratulations. You’re now experiencing the sames issues I’ve had (and others) with the app since I first bought this thing over a year ago (What's the status of firmware upgrades for WiFi issue? - #12 by Mirozen). They said a fix was coming, but it was just crickets after that.
At the end of the day, you really don’t need the app - the Anova works great on its own. But not happy about paying extra for wireless and bluetooth features that never worked.