(A) This case is pending before the Ohio Supreme Court, not a federal court.
(B) The Ohio Rules of Civil Procedure (the regulations governing how litigation works) require that if you're suing alleging fraud, you have to explain in your lawsuit exactly what fraud you think has occurred and why. As Justice O'Connor stated in this opinion, it isn't enough to say "we're sure there was fraud, and we'll find out exactly how during this case".
(B1) So the Ohio Supreme Court isn't requiring proof of fraud, exactly, it's requiring that by Jan. 7 they give some specific examples of what fraud is supposed to have occurred.
"Failure to state the grounds upon which relief can be granted." Looks like they'll have shut up about Bush for the next four years.