The Toon sit 14th on the table with just 17 points form 16 outings, including five losses in their past six outings, but the Dutchman has urged the club to keep the faith in order to get back to winning ways.
"It is a frustrating run at the moment, because we won last week and we wanted to get our first away win," he said.
"It didn't happen but we must keep on having faith, working hard to get the wins.
"Yesterday, they were sharper than us at set plays but we must work on that, improve ourselves and go onto the next game.
"We have got the fans behind us so it will help us and I hope we can do our best on Saturday."