Hello,
This is responsive issues, Please use this css in your system -> site template styles -> template options -> Custom Code -> Custom css:
Screenshot: https://imgur.com/a/Axci9sA
header#sp-header{
background-color: #000000a1 !important;
}
header#sp-header .sp-megamenu-parent>li>a,
.sp-megamenu-parent>li span,
body.ltr .sp-megamenu-parent>li.sp-has-child>span:after {
color: #fff;
}
Then go to sp page builder -> pages -> home -> Open in backend editor then follow the steps described in screenshot.
Corrected page json: template84323.json.zip
Thanks