Can't activate the horizontal mega menu
I am trying to create a mega menu on my website (www.planeaenergy.com), but in the menu options I cannot activate it as before.
The box that was displayed before has disappeared.
Now this tab appears that only allows you to mark an option "Automatic Mega Menu".
Using it this way, the menu is displayed vertically and I want it to be displayed horizontally.
What can I do to fix it?
Thank you very much.