I installed the x theme child theme to add an additional topbar months ago and it worked just fine until last week. Now, when you go to themes, there is an error:
ERROR: Template is missing. Standalone themes need to have a index.php template file. Child themes need to have a Template header in the style.css stylesheet.
I tried adding a blank index.php file in the folder but that didn’t work and the style.css file already has a template header of “x”.
What I don’t understand is that nothing (to my knowledge) changed within the last week. I’m on WP 5.2.2 and X theme 6.5.5 and have been for longer than this has been an issue.
I already tried re-downloading the child theme and to start fresh, but I get the same error.
Additionally, I can no longer select a template in the page attributes, though I’m not sure that’s related.
Can you help?