Popcorn maker (North Acton)

A great popcorn maker but has stopped working.
I’ve taken it to a repair cafe where a guy opened it and checked all parts (including the plug).
The only fault he found was that the top part was no longer sealed to the base.

Perhaps someone could try revealing it and see if it works.

I rarely eat popcorn these days so no point keeping an appliance like this one anymore.