Tried with default theme:
Tried with all other plugins disabled:
Getting WordPress error on posts/pages with legacy shortcodes like [youtube][/youtube]
You are about as vague as it gets “WP Error” with no information at all that was asked. I saw in another question you deleted that you used wrapped shortcodes that are NOT correct shortcodes for ARVE.
You need to used [youtube url=”…” /] no wrapped shortcodes. They are from WP or Jetpack.