Does not finish loading

We have a store with thousands of single and variable products.

We bought this plugin 1 year ago when it actually worked. Unfortunatly, now the plugin takes ages to load from dashboard. In fact it still hasn’t finished loading and it doesn’t look like it will.

I don’t know if this plugin is badly written? BUT! if the purpose is to edit multiple products at once (bulk edit), why even bother to try if the pluing itself can’t handle or load multiple products at once?