Hi my name is David. Ashik seems to be unavailable, might have his own Internet connection issues, a power cut, or anything. If you are happy to continue with me I will do everything I possibly can to help you with your question.Please let me know. Sincerely, David.
The issue here seems pretty straightforward, from my research into it.You may have more than one AppleID, for different reasons. It could be that you have Apple Store or iTunes accounts with billing information from different countries, or just separate Apple IDs for different people or billing accounts.There is a conflict between the Apple ID used in the App Store, and used in the Music App. The fix is to make sure both are signed in with the same Apple ID.First confirm which Apple ID you want on your iPad. Make sure you have the right username and password. You can check that it works on the Apple website first, here http://myinfo.apple.com
Once you have the correct Apple ID, sign into of App Store and the iTunes Store using the same ID, on the iPad.This is how this problem should be solved, which you can try in your own time if you get this message in time. Also you may need help, please feel free to reply to me here and I will be glad to assist you.