Issues
There was a problem communicating with Google servers.
How to fix
1. Download Open Google apps pico.
2. Extract PrebuiltGmsCorePi.apk.
unzip open_gapps-arm64-9.0-pico-20190309.zip
lunzip Core/gmscore-arm64.tar.lz
tar xf Core/gmscore-arm64.tar
adb push gmscore-arm64/nodpi/priv-app/PrebuiltGmsCorePi/PrebuiltGmsCorePi.apk /sdcard
3. Replace PrebuiltGmsCorePi.apk.
dd if=/sdcard/PrebuiltGmsCorePi.apk of=/system/priv-app/PrebuiltGmsCorePi/PrebuiltGmsCorePi.apk bs=1M
Over!