"The com.mojang.minecraftpe stopped."

Bought the Pocket Edition, I had some difficulties to download, but it worked. After installation, I tried to open a modal and appeared with the text: "The com.mojang.minecraftpe stopped." and only two options to press "Report" and "Ok". And so far I am unable to play. On Google Play, has no information on requirements, but my phone is a Sony Xperia T3, and Android is 4.4.4. I believe not be problems requirements. What should I do?