The Landscaper theme problems

Hi, I’ve been trying to get in touch with anyone for support on the Landscaper theme. I cannot save new additions to the menu, make pictures go live, and a few other problems. Is there any way to get in touch with someone? Thanks.

Their support info is here https://themeforest.net/item/the-landscaper-lawn-landscaping-wp-theme/13460357/support

The author seems to be replying to item comments very quickly and appear to be very responsive