Good morning, so i managed to solve the problem by removing some properties in my client class because the data i was receiving was null, that's probably why i had this error. for those who have the same problem check well in the php that you did not receive null data or in your database. I will close the topic.

here is my info.splist

update on the first signal SIGABRT i write that to to solve the first signal SIGABRT  i f error == nil {           //Succed           if let data = data{             //call the parseJson             self.parseJson(data)           }