Atletico go into Saturday's home clash with improving Deportivo La Coruna having lost their last three matches, suffering 3-2 defeats at home to Espanyol and Aris Thessaloniki before going down 2-0 at lowly Levante last weekend.
"The concern that we have is serious because we are practically out of one competition, the Europa League, and that is worrying," said Cerezo.
"We hope to get back on track in the league and continue in the Copa del Rey. We are doing something bad because we aren't winning."
However, Cerezo added: "I don't like to talk of crisis, it doesn't exist among the fans, the board, the coach or the club.
"Of course Quique Sanchez Flores continues to have all of the club's confidence.
"I trust in the coach and the squad, they are the ones who have to get us through this.
"We are going through a bad run of form. We must try to be more consistent and achieve what we all want to achieve - victories."