I see that they have also challenged Percy to a live oral debate.
That's a standard creationist trick, and it means nothing.
Science is conducted through scientific journals and professional meetings, with lots of peer review and time to do research and consider the evidence.
Creationists love oral debates because showmanship, rather than scholarship, can be impressive and carry the day with a lot of their supporters.
Creationists hate written debates because they require evidence, logic, and lots of references. Showmanship has no place there, and the glib response can be carefully examined and rebutted.
So issue a counter challenge: Come here and engage in a written debate providing solid references for any claims, and follow the scientific method.
You'll hear crickets...
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.