I have problems with compaion app

Yesterday I tried buy some fc points in eafc25 compaion app and it fails again and again so I tires reinstalled it so when I search companion app in playsotre now they just say this app is not available and I tried restart phone or what ever I can nothing happened plz help me I search some communities na Twitter their are many people same like me

The message on the file I add says, "This app cannot be used."