I did FTP via my hosts control panel and edited the file in place.
As I mentioned, above the file you want is: wp-content/themes/narga/core/library/layouts/custom-header.php
And track down lines 56 and 60
Before line 56 enter the code
$himage = get_header_image();
and then in both lines 56 and 60 replace get_header_image() with $himage
That should fix the problem. I also suggest downloading an add-in to disable theme updates. You don’t want a future ‘untested’ update to break your site again.
You should also, through your hosts control panel, backup your install before doing this (or if you choose to delete the theme.)
Deleting the theme via FTP shouldn’t break your site as far as I know, WordPress should revert to a basic theme (or at least tell you to choose a new one.) If you feel daunted by editing the code, this may be a better choice for you.
