google play won't work on data but will on wi-fi

I can not get google play to run off my data but it works fine when connected to wifi. I have no other problems anywhere else. It says no connection. Phone is a note i717 running on straight talk. It worked before. Thanks

via Forums de téléphone cellulaire (en français) http://cellphoneforums.net/fr/samsung/t365932-google-play-ne-fonctionnera-pas-sur-les-donn%C3%A9es-mais-le-wi-fi.html