That loss was swiftly followed by disappointment in their Champions League qualifier against Real Sociedad, with Carlos Vela's brace on Wednesday ensuring the Basque side triumphed 4-0 on aggregate.
Gonalons believes that Lyon need a swift response to quickly counter negative feeling surrounding back-to-back defeats, warning that Evian will provide a stern test when the two teams meet tomorrow.
He told reporters at a pre-match press conference: "It is a big game on Saturday against Evian, we have to get back into the flow to stop this negative spiral.
"It is not easy because we do not have a lot of recovery time. It is never easy to play this game, it is a small derby.
"They have a great desire, they go ahead and do not let go."
Les Gones sit third in Ligue 1 at this early stage of the campaign, three points behind pace setters Marseille, who have taken maximum points form their first three matches.