I'm getting error 921 while trying to download apps on my android?

[mMakeithappenm]

I tried to delete cache and history and everything then restart phone but still didn't work :/ can anyone help please???

 

[jon_mac_usa_007]

Fix error 921 when you start downloading an app:

Use the instructions given below if you are unable to download an app.

1 Ensure that your device is one among listed supported devices. If your device is not present in the list, contact manufacturer.
2. Ensure your credit card information for paid apps is correct. You can check the updates for credit card information by signing into your Google Wallet account.
3. If your credit card information is up to date, simply cancel the download and restart it.
4. Restart your device and try downloading app.
5. Ensure the connectivity of Internet. Contact your service provider if you are facing problem with Internet Connection.
6. Ensure Firewalls are not blocking access of particular application on your device. Check the ports TCP and UDP 5228 for Google Play.