Activate an object in the scene, change camera height

Hi, I’m coming back to my project to present it at a summer university. I’m having two problems in the second scene “Final house” in the living room block:

  • the knife in the kitchen is no longer active, like the saucepan and the iron. I can’t find the bug.
  • I can’t lower the camera position to bring it up to the height of the girl.
    Thank you for your precious help.
    Kind regards
    This is the code WMA-CUB