New boy Marange said he planned to have showdown talks with the club after being left out of their 25-man Premier League squad.
He also felt let down by the Eagles as he tried to settle in after his summer move from Bordeaux and chairman Parish says the club are taking steps to resolve the situation.
He told the Evening Standard: "No one intended for it to happen that way. We are trying to sort it out as best we can.
"We will resolve it. We are mindful of where we've not covered ourselves in glory and other people just maybe need to be mindful of where they've not covered themselves in glory. If everyone is sensible, we'll reach a good conclusion, I'm sure.
"We're not happy that we have someone here who doesn't feel they were treated well. We don't like that. That is not the kind of club that we are.
"We are trying to resolve it amicably."
Meanwhile, Parish has confirmed the club will consider re-signing striker Johnson in January after they could not reach agreement with his present club QPR in the summer.
The Palace chairman told the South London Press: "I'm gutted that he's not going to be a part of it and I think AJ is as well.
"We were ideally looking at a big striker but had conversations about AJ all summer. We had concerns over injuries but he came back really fit and strong for QPR. It would have been a special moment to get him back.
"He won't be far from our thoughts in January. It's something we'll always consider. We'll keep in touch with him."