No Apps in Google Play Store (Problem)

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http://androidforums.com – Hello, One of my friends has a problem with her new Android device (Acer Iconia B1) The device with no SIM card ( just Wi-Fi). Firstly, everything was Okay. But then she got a problem with Google Play which is there're very few Apps in the Store (4 Apps). After that, she cannot find any App in the Store! She tried many solutions... Factory reset and delete data... Google Play settings are Okey.... So, what's the problem with her? And how can she solve the problem? (General)