Missing or overlapping Search/Shopping Cart/Menu button in mobile display

Hi,

I’m using:
– Suffice 1.2.1
– Php 7.1.33
– WordPress 5.4.2

When I try viewing my “Shop” page, I notice my search (magnifying glass)/shopping cart/menu (the one with 3 horizontal lines) buttons are overlapping with the “Home/Shop” link. This only happens in mobile view, and not in desktop. I already tried in two phones; huawei and xiaomi.

This also happens in the main home page @ https://www.mykampung.life. However, in this case, those 3 buttons are missing/hidden (possibly behind the slider image), but not overlapping. I do see it momentarily sometimes when the loading is a little slow.

I’ve not modified or customised anything. What could be the problem? Thanks.

The page I need help with: [log in to see the link]