fatal error

Hola,

Tango este error en la vista previa del contenido indiferente del tema a usar y no se si sera un tema de plugins mañana probare eso

Fatal error: Uncaught Error: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function «fop_enqueue_conditional_scripts» not found or invalid function name
in /home/jrrsant1/public_html/wp-includes/class-wp-hook.php on line 324

Call stack:

1. WP_Hook::apply_filters(NULL, array)
   wp-includes/class-wp-hook.php:348
2. WP_Hook::do_action(array)
   wp-includes/plugin.php:517
3. do_action('wp_enqueue_scripts')
   wp-includes/script-loader.php:2272
4. wp_enqueue_scripts('')
   wp-includes/class-wp-hook.php:324
5. WP_Hook::apply_filters(NULL, array)
   wp-includes/class-wp-hook.php:348
6. WP_Hook::do_action(array)
   wp-includes/plugin.php:517
7. do_action('wp_head')
   wp-includes/general-template.php:3064
8. wp_head()
   wp-includes/template-canvas.php:17
9. include('/home/jrrsant1/publi.../template-canvas.php')
   wp-includes/template-loader.php:106
10. require_once('/home/jrrsant1/publi.../template-loader.php')
    wp-blog-header.php:19
11. require('/home/jrrsant1/public_html/wp-blog-header.php')
    index.php:17