guys i've bought a new phone samsung galaxy star for the first few days i can downlaod games from play store but now i cant. my wifi is ON but i cant access play store it says "no connection retry" i cant access facebook too and other stuffs except youtube pls help me fix these problems PLEASE :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'( :'(