Palermo president Maurizio Zamparini has repeated his threat to walk away from the club.
Palermo lost 2-0 to Messina in the Sicilian derby on Sunday, but a number of refereeing decisions sparked complaints of bias.
Christian Rigano’s opening goal appeared offside, while Palermo saw two penalty appeals waved away and had Andrea Caracciolo dismissed for dissent.
Palermo director of sport Rino Foschi was also shown a red card for dissent during the half-time break, and the club have since claimed they are being sabotaged so that “bigger sides” – such as Lazio, Milan and Fiorentina – can finish in the top four.
Zamparini has now announced he is looking for somebody to replace him as president.
“I was told that the referee had a huge influence on the game,” he said.
“I am leaving football and this time I am not joking. I’m looking for a new president to take charge of Palermo.
“I think the problem might be me and not Palermo per se. An honest and clear person like me is not suited to this type of football.”
Zamparini threatened to quit Palermo in January after some of his business interests came under investigation.