Push Proxy server not working

Hello,

I’m trying to test the Android App and install a proxy server, but whatever I do, the push notifications are not getting to the android app.

Installed the apk from:

Installed the push proxy server from:

I have enabled the push notifications and have set the server address.

Error in the log file:

[2016/03/05 17:06:09 CET] [EROR] /api/v1/send_push: code=404 ip=MY_IP

Right now, you can test the beta .apk using the nightly builds server. Android requires new APIs on master that will be available in Mattermost 2.1 shipping March 16.