The Knights were thrown in to crisis on the eve of the season following a break down in the arrangement with the local council that they would groundshare with local football club York City, while a new community stadium was built.
Their previous home at Huntington Stadium was closed at the end of 2014, and is currently being demolished.
They have played home games at Clifton Park, home of the city’s rugby union club, and at the Big Fellas Stadium in Featherstone so far this season.
Hornets chief executive Ryan Bradley said: “We have tried since last week to speak to officials at York City Knights to get an indication of where we would be playing but haven’t been given any response.
“We raised the issue with the RFL when they sent out the confirmation of fixtures on Friday that listed Bootham Crescent as the venue and they confirmed they had been working with York to try and get a plan of action confirmed.
“I have since spoken to the receptionist at York this morning and various other members of staff at York who are all in the dark as to the proposed plans for this weekend and despite assurances of a call back we haven’t received any further communication.
“It does cause us a few issues surrounding logistics, we just have to plan for a 3pm Sunday kick off somewhere near York!”
The RFL have confirmed that an alternative venue has been booked, should York City Knights not be able to resolve the issue themselves.
York’s last home opponents, South Wales Scorpions, were told that if the uncertainty over a venue hadn’t been sorted by the end of Monday ahead of their game, that the RFL’s contingency option would be used.
As it was, the Scorpions played the City Knights at the Big Fellas Stadium on May 22.
Clifton Park is unavailable to host this weekend’s game due to a cricket match being played at the venue.