Title: Customize.php not working
Last modified: April 26, 2019

---

# Customize.php not working

 *  Resolved [mrblond](https://wordpress.org/support/users/mrblond/)
 * (@mrblond)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/)
 * I’ve created and adjusted all main aspects of my new site using my localhost 
   and everything is okay.
 * Yesterday, I’ve installed wordpress on my real public host server, activated 
   the theme and all needed pligins but was surprised when I’ve tried to start the
   customization option. It just opened a black screen. The sidebar where usually
   are the options for customization of the theme is also blank with the name of
   the site on the top end.
 * Now, I can’t start the site because customization options not working.
 * Could you help what is the problem?

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

 *  [Joy](https://wordpress.org/support/users/joyously/)
 * (@joyously)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11471258)
 * The Customizer is written in javascript, and the theme and plugins also have 
   javascript, which may have errors. This can cause the WP core javascript to not
   run, because the error stops execution.
    I suggest you read this page to see 
   how to determine the script with the error, and you can then ask the plugin or
   theme author about it on their support forum.
 * > [Using Your Browser to Diagnose JavaScript Errors](https://wordpress.org/support/article/using-your-browser-to-diagnose-javascript-errors/)
 *  Thread Starter [mrblond](https://wordpress.org/support/users/mrblond/)
 * (@mrblond)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11471602)
 * Following the above instructions, I opened the Chrome browser console and found
   this error record:
 * > Failed to load resource:
   >  customize.php?url=https%3A%2F%2Fcatalog.philarooms.
   > com%2F:1 the server responded with a status of 500 ()
 * There are other messages in the console with attention remark:
 * > JQMIGRATE: ‘ready’ event is deprecated jquery-migrate.js:45
   >  console.trace 
   > migrateWarn @ jquery-migrate.js:47
 * > JQMIGRATE: jQuery.fn.load() is deprecated jquery-migrate.js:45
   >  console.trace
   > migrateWarn @ jquery-migrate.js:47
    -  This reply was modified 6 years, 11 months ago by [mrblond](https://wordpress.org/support/users/mrblond/).
    -  This reply was modified 6 years, 11 months ago by [mrblond](https://wordpress.org/support/users/mrblond/).
    -  This reply was modified 6 years, 11 months ago by [mrblond](https://wordpress.org/support/users/mrblond/).
    -  This reply was modified 6 years, 11 months ago by [mrblond](https://wordpress.org/support/users/mrblond/).
    -  This reply was modified 6 years, 11 months ago by [mrblond](https://wordpress.org/support/users/mrblond/).
    -  This reply was modified 6 years, 11 months ago by [mrblond](https://wordpress.org/support/users/mrblond/).
 *  [Joy](https://wordpress.org/support/users/joyously/)
 * (@joyously)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11472021)
 * The first error message says that your site is getting a 500 error. You will 
   have to figure out why. You can look on the server for an error log. You can 
   also enable Debug mode in WordPress:
    [https://codex.wordpress.org/Editing_wp-config.php#Debug](https://codex.wordpress.org/Editing_wp-config.php#Debug)
 * You can install the [Health Check](https://wordpress.org/plugins/health-check/)
   plugin and see if that helps. It has a Troubleshoot mode.
 *  Thread Starter [mrblond](https://wordpress.org/support/users/mrblond/)
 * (@mrblond)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11472856)
 * I found it.
 * It is the plugin “HappyForms” that causes the problem.
    I wonder how it works
   perfect on my localhost and not on the public host?!?!
 *  [sinip](https://wordpress.org/support/users/sinip/)
 * (@sinip)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11473380)
 * Difference in PHP version used, maybe?
 *  [Joy](https://wordpress.org/support/users/joyously/)
 * (@joyously)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11473436)
 * You would have to ask at the plugin’s support forum. It could be the PHP version.

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

The topic ‘Customize.php not working’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 6 replies
 * 3 participants
 * Last reply from: [Joy](https://wordpress.org/support/users/joyously/)
 * Last activity: [6 years, 11 months ago](https://wordpress.org/support/topic/customize-php-not-working/#post-11473436)
 * Status: resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics