Is it possible for 2 levels to communicate with each other since in my game all levels depend on an object that exist in a persistent level so can i pass that object to another level ? or at least make communication between 2 levels ? or is the only option to create my whole game in 1 level ?
You simply have to save it.
There is a “SaveGame” node which allows you to store stuff inside of it and in your second map you can call it by “LoadGame”.
Check out this tutorial for a more detailed explanation on how to set it up and use it: Unreal Engine, Save & Load game data - UE4U.XYZ - YouTube
Hope this helps 
Thanks Erasio
The Simple solution i used , was pass my variables to the player blueprint which is available to all levels