Question [Q] Failing to send texts via Motorola Connect

A minute or so after I try to send a message via Motorola Connect, I get the following error message from 9230
Message sent to  invalid destination. Please check your number and try again. Msg 2127
. Whats interesting is that the messages show up in my SMS app as having sent.

My phone is running stock 4.4.2 the boot loader has not been unlocked. I am on Sprint and I use HoverChat Free as my SMS app.

Any thoughts?