My PS4 Blu Ray Drive is only working without screws...

It is what it is in the title. The other day I was cleaning it and when I closed everything, once I turned it on, the Blu Ray drive makes the noise as of trying to insert a disk. I try to place the disk manually but the closing of the drive does not allow the disk to go in. When I press the eject button, 3 beeps sound and the same noise stars, although I can't insert the disc. It seems like it's trying to pull out a disk, although there is none inside the drive.

I open the PS4's top cover and I tighten every screw, thinking it would be bad contact. Same thing happens. Then I try the exact opposite, unscrew every screw from the drive metal sheet. It works perfectly.

What could this be? I cannot leave it wide open, as I have cats around the house.

Thank you in advance.

Update:

The problem has been found, but is not resolved.

The metal sheet that is immediately on top of the disc drive is pushing the disc detecting claws of the drive, so it is as if the console was sensing a disc being inserted constantly.

I'll keep digging on my own.