So sorry to hear this is happening! What is the keyword that you are trying to use? Receiving this error message is an experience we're trying to collect more information on. For instance,what browser are you currently working in? If you have not yet already, I would suggest using a different browser or even a private/incognito window. We have also seen cases where attempting to set up your Text-to-Join again later in the day has helped.
I was originally using Chrome this morning but I tried it again in Firefox this afternoon with the same results.
I requested the keyword CARITAS and it said it was available.
Thank you for getting back to us so quickly! I appreciate you giving it another try for the sake of troubleshooting. I have actual sent you a follow up email about your issue as well.
Please let us know if you have any further questions.