Unable to Activate Facetime/IMessage on Ipad

From the initial purchase of my iPad, I continue to receive the message "an error occurred during activation" whenever I attempt to log in to Facetime or imessgae on my iPad. Initially, I didn't have an iPhone and thought that might be the issue as to why I kept receiving the error message. Within the past month, I've gotten an iPhone and still receiving the same error message. The strange thing is that I am able to see the messages from my phone on my iPad but it won't allow me to sign in. Whenever I attempt today's sign in, the error message continues to pop up partially obscuring the messages from my phone.

[Image Edited by Moderator to Remove Personal Information]