Green line issue after software update.Please do needfull samsung customer support team

In my phone samsung j7 prime playstore app doesn't work. what did I do to work playstore app again ? Please help me.

In my phone samsung j7 prime playstore app doesn't work. what did I do to work playstore app again ? Please help me.

from today onwards when I on the mobile data ,automatically my memory card data's are erased and it is filled with some foreign language such as Chinese or Korean. and when I switch off and on the mobile the data is recovered. again when I on mobile ...