Title: After update, Uncaught Error
Last modified: September 29, 2022

---

# After update, Uncaught Error

 *  Resolved [guruzz](https://wordpress.org/support/users/guruzz/)
 * (@guruzz)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/)
 * Hello,
 * after updating, I tried to make some changes through the view editor, but there
   was an error notice in the View window, and I cannot make any changes.
    Query
   monitor shows:
 * Uncaught Error: Call to undefined function WP_Filesystem()
    in so-css.php on 
   line 93.
 * I am not sure how to fix this.
 * Line 93 of my so-css.php file shows:
 * if ( empty( $post_id ) && WP_Filesystem() ) {
 * and line 91-94:
 * function get_custom_css( $theme, $post_id = null ) {
    $css_key = ‘siteorigin_custom_css[‘.
   $theme . ‘]’; if ( empty( $post_id ) && WP_Filesystem() ) { $custom_css_file 
   = apply_filters( ‘siteorigin_custom_css_file’, false );
 * Same problem om my staging site that runs a different theme.
 * Help is really appreciated!
    -  This topic was modified 3 years, 8 months ago by [guruzz](https://wordpress.org/support/users/guruzz/).
    -  This topic was modified 3 years, 8 months ago by [guruzz](https://wordpress.org/support/users/guruzz/).
    -  This topic was modified 3 years, 8 months ago by [guruzz](https://wordpress.org/support/users/guruzz/).
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fafter-update-uncaught-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 6 replies - 1 through 6 (of 6 total)

 *  [saphiro](https://wordpress.org/support/users/saphiro/)
 * (@saphiro)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16055741)
 * Same here. I’ve got Fatal Error through the view editor.
    -  This reply was modified 3 years, 8 months ago by [saphiro](https://wordpress.org/support/users/saphiro/).
 *  Plugin Support [Andrew Misplon](https://wordpress.org/support/users/misplon/)
 * (@misplon)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16055999)
 * Hi guruzz and saphiro
 * Thanks for reporting this issue; apologies for the hassle. [https://wordpress.org/plugins/wp-rollback/](https://wordpress.org/plugins/wp-rollback/)
   is one option to rollback to the previous version. We’ll release an update as
   soon as possible to resolve the issue.
 * Thanks again.
 * Andrew
 *  Thread Starter [guruzz](https://wordpress.org/support/users/guruzz/)
 * (@guruzz)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16056174)
 * Thank you [@misplon](https://wordpress.org/support/users/misplon/) !
 *  Plugin Support [Andrew Misplon](https://wordpress.org/support/users/misplon/)
 * (@misplon)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16058581)
 * Hi guruzz
 * Apologies for the hassle.
 * We’ve released an update with a check to ensure WP Filesystem is set up.
 * Please, let us know if there are any follow-up queries or requests.
 * Thanks!
 * Andrew
 *  Thread Starter [guruzz](https://wordpress.org/support/users/guruzz/)
 * (@guruzz)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16059401)
 * Hi [@misplon](https://wordpress.org/support/users/misplon/),
 * installed the update, works like a charm!
 * Thank you for your support!
 *  Plugin Support [Andrew Misplon](https://wordpress.org/support/users/misplon/)
 * (@misplon)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16059413)
 * Super, thanks for confirming!
 * Cheers for now.
 * Andrew

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘After update, Uncaught Error’ is closed to new replies.

 * ![](https://ps.w.org/so-css/assets/icon.svg?rev=2556879)
 * [SiteOrigin CSS](https://wordpress.org/plugins/so-css/)
 * [Support Threads](https://wordpress.org/support/plugin/so-css/)
 * [Active Topics](https://wordpress.org/support/plugin/so-css/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/so-css/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/so-css/reviews/)

## Tags

 * [uncaught error](https://wordpress.org/support/topic-tag/uncaught-error/)
 * [update](https://wordpress.org/support/topic-tag/update/)

 * 6 replies
 * 3 participants
 * Last reply from: [Andrew Misplon](https://wordpress.org/support/users/misplon/)
 * Last activity: [3 years, 8 months ago](https://wordpress.org/support/topic/after-update-uncaught-error/#post-16059413)
 * Status: resolved