Hello,
Thank you for this amazing theme,
I have just made an installation of your theme in http://volarengrupo.com
The problem is that when adding a sub-item in the menu, The arrow down appears but the menu never goes down to show the item.
I haven´t touch anything. Installation is new.
I removed the submenus because I found out that the last version of bootstraps does not support them anymore. Apparently the reason is that submenus make the navigation in cells phones harder, point that makes sense.
So I finally decided to redesign my web without submenus.
To help us keep support thread separates could you please create your own thread for your question here https://colorlibsupport.com/c/unite-support/ instead of replying on others thread as it makes the thread messy and hard to read.
If you want to you can also add reference of this thread in your newly created thread.
We would be more than happy to help you on your new thread.