I've recently came across yoru plugin and I'm trying to build a demo for a client of mine. That being said, whenever I check the "Enable NBDesign" on the woocommerce product it display the whole interface proplerly.
The issue is that it never saves the information. When I click "Update Product" it simply refreshes the page and unchecks the box like I've never checked it in the first place.
Did I forget a step?
Thanks.

I must be doing something wrong, even the demo gives me the same error. (Cleared cache, tried Firefox and removed the extentions.)
Am I missing a step?
Create a product
Check "Enable NDesign" and I get this section.
https://gyazo.com/3275f52d8d72f0f897f9351a69fccce0
Then I set up values and click "Update"
https://gyazo.com/ffbfd61cb2c2fe4bce7c12b965a00dee
On your demo website :
https://gyazo.com/e2fa153f8c125126ce1c65640d580c10
Hello,
I knew it was some silly step I forgot.
Thanks a lot, I'm already contacting the client with a demo and high recommendations. Amazing support speed and great features :)