Server not found

One of our Bishops receives Server Not Found when running kindoo. He is at the door and on the wifi symbol in the lower left corner and gets that message. I can stand next to him and it will work. I've never seen that come up before. Any ideas?

Is he still experiencing this? Is he by chance using a VPN on his phone? If so, disconnect the VPN. Also has he tried connecting to the church wifi from outside the door and trying to access it that way?
Given that Kindoo is server based, is the Kindoo servers go down for maintenance or whatever reason, no one is getting into the building via Kindoo while it is down