Fast Question - Main menu / off camera

Hey, I have 1, small question.

I done script menu, but i dunno how in js stop camera moving.

     if(Input.GetKeyDown("escape")){
     
     
         if(pauseEnabled == true){
             //unpause the game
             pauseEnabled = false;
             Time.timeScale = 1;
             AudioListener.volume = 1;
             Screen.showCursor = false;            
 
         }
         
         //else if game isn't paused, then pause it
         else if(pauseEnabled == false){
             pauseEnabled = true;
             AudioListener.volume = 0;
             Time.timeScale = 0;
             Screen.showCursor = true;
 
         }
     }
 }

When menu is active i try:

 I try Camera.mainCamera.active = false

 

and, on no active

 Camera.mainCamera.active = false 

But it doesn't work, camera back for self first possition, and when I Off menu, camera dont move and goes down. ( I dont saw map).

Could any1 get me resolve ?