Hi Yigit,
thanks for your reply.
Unfortunately, this is a WordPress issue since there are not enough specific hooks to deal with multiple plugins accessing the WP menu section.

http://wordpress.org/plugins/nav-menu-roles/faq/

I don’t see the Nav Menu Roles options in the admin menu items?
This is likely because you have another plugin (or theme) that is also trying to alter the same code that creates the Menu section in the admin. For example, the UberMenu Mega Menus plugin is a known conflict with Nav Menu Roles.

This is not a failure of Nav Menu Roles and there isn’t anything I can do about it. WordPress does not have sufficient hooks in this area of the admin and until they do plugins are forced to replace everything via custom admin menu Walker, of which there can be only one. Until these hooks are added the menu modification plugins are unfortunately going to conflict with one another

I just want to know how I can disable the Ubermenu inside the Enfold theme.
I found the class for the Ubermenu – Megamenu here – /enfold/framework/php/class-megamenu.php

Can you provide me a code snippet to disable it?
Or you can add a checkbox option inside the Enfold theme config to disable the Megamenu plugin.

Thanks
Robert