Hi,

I ran into a major issue after updating TheFox and Slider Revolution using the built‑in update tools.

What I did

1. Updated TheFox theme using the Envato Market plugin
2. Went to TheFox Options → Maintenance
3. Clicked Upgrade Revolution Slider
4. This upgraded Slider Revolution to version 7
5. After that, I opened a page to edit it

What happened

1. The slider metabox no longer appears and instead triggers a fatal error

Here is the exact error from the logs:

PHP Fatal error: Uncaught Error: Class "RevSlider" not found in /wp-content/themes/thefox/includes/metaboxes/views/metaboxes/page_options.php:12

This prevents the Page Options panel from loading at all.

The metabox only appears if I manually add a class_exists('RevSlider') check, but even then it doesn’t populate.

2. The slider no longer appears in the “under the header” position on the front‑end

The post meta for the slider is still in the database, but the theme no longer outputs the slider in the header area after the update.

The only way I could get the slider to appear again was to manually hook the shortcode into the theme, which suggests the original slider injection logic is no longer running.

Additional detail

Slider Revolution 7 now gives shortcodes in this format:

[sr7 alias="my-slider"][/sr7]

I’m not sure whether this is related, but I wanted to mention it in case it helps.

What I need

Could you please confirm whether TheFox is compatible with Slider Revolution 7, and if not, whether an update is planned?

Right now:

• The slider metabox crashes with a fatal error
• The slider cannot be selected in the page options
• The slider no longer appears in the header position unless manually injected

Any guidance or update would be appreciated.

Thank you!