Reply To: error when update 5.3.6 to 6.0.4 ( we have made the previous recommendations)

Here is a custom CSS code to change the menu background and hide blog elements. As for the second screenshot, could you please send us a link where we can see these elements?

.wd-nav-main .wd-dropdown {
    background-color: #34404C;
}
.post-single-page .meta-post-categories,
.post-single-page .wd-entry-meta {
	display: none;
}