When I try to add product attributes or product options when creating a product nothing happens. I click the + icon to add something but it does not respond for me to actually add anything. Adding attributes on the admin side works but then nothing shows in the actual product page. I can’t add any product options at all from the admin product creation page though. The + button does not respond when you click it.

Opencart 1.5.1.1

Pretty sure there’s an easy fix to this, thanks for your time.