I'm having difficulties getting my Verizon Messenger+ to send text messages. It will say, "sending," and then a screen will basically say that it is have a problem sending the message and do I want to continue trying or cancel the message. I am having to restart my (brand new) HTC One M8 in order to get it to work, and that isn't even a sure fix. Is there something that I can do to rectify this problem?