Plugin not working at all

I installed the plugin on a local test website to check if it fits our client requirements for his store and it doesn’t work at all.

Searching for products always returns “No results for [search]”, the only times it works is searching for SKU and only if you don’t type the whole SKU. We have enabled everything except for “Exact search” in the options. Also search didn’t work at first when everything on the Search options was disabled.

Then adding products to the bundle seems working until you update/publish your product and see no product you added is saved!