Question edited for clarity and toss in some CAPS.
Hasn't it been used for a while? Sometimes they will stick because of oil build up, which goes sticky and over time rancid. Put the waffle make on and heat it up. It should release. If it is the type with a catch, spray the catch with Easy Off Oven Cleaner and clean with a plastic pot brush.
https://www.google.com/search?q=Waring+Pro+Double+Waffle+Maker
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