Problem with Google Play Store on Flyme 5.1.6.0G

Hello,
I install new flyme version and I had problem with my Google Play Store. When I download an app or update an app with 3g or 4g data internet it said the message "waiting for network "
Can anyone help me?
I also try to clear data from Google Play Store app and Google Services but not fix the problem.

Go to app download/3 points/settings/turn off download on wlan only

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