android tablet problems with downloading ANY apps

i go to download the App and it says error when i go to download and it automatically says this app will be downloaded. but it never downloads and the error screen comes up and ive tried to reset my tablet and it keeps doing the same thing someone please help me!, frustrating

Have you ever succeed downloading any apps?And where do you download the apps?

yes ive tried downloading several apps and i go through play store

which Model is your device?

google android tablet