Need suggestion about our item's hard rejection

Hi fellows,
We recently uploaded an item and that got hard rejected. We spent more than a year building it but now we don’t understand why it got hard rejected. We are really very upset at this moment.
Can anyone please help us to get an idea of why this item can be rejected?
Here is our product profile:
And here is our demo: Door Soft Product Demo
Any help could be appreciated and thanks in advance!