Error message "This app requires an active windows phone dev center accounts. Please contact support to check your account status". Why ?? How active dev account ?? Please give me solution. Thanks
After reading the error I assume your Microsoft developer registration has expired. You need to renew the registration for another year. You should login to your developer webpage and proceed to the following URL https://dev.windowsphone.com/en-us/account and check for expiry there. You can renew it by clicking on Edit your billing information link.
Hope this helps. We asked more info because your question was vague.