An internationally known scholar of ancient Coptic has the following comment:
I looked at the text you asked about. There are some Coptic characters in it (shai, fai, hori) but the text is not recognizable as Coptic. The form of the sigma is rather untypical of Coptic. There is one Bohairic character, I think. The juxtaposition of characters is weird and I do not find a recognizable word. Could it be a magical text? It certainly does not appear to be a Christian text. I doubt that it is ancient. What is the medium? Stone, metal? And the location of north Jordan is also odd.
He asks a good question: is the inscription on stone, or metal, or something else? and what is its size, by the way?