I have a problem that whenever I go into the child theme customization (appearance > customize), it says “Internal server error” and I can’t see the website preview. This is although the website is up and running normally. I’m using WP Bakery for the page customization.
How can I solve this? I tried uninstalling the theme and reinstalling, I tried updating, and I tried uninstalling plugins and re-installing them, but to no avail. Please help.