Title: 503 error
Last modified: September 12, 2022

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# 503 error

 *  Resolved [tictubso](https://wordpress.org/support/users/tictubso/)
 * (@tictubso)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/503-error-44/)
 * Hi,
 * Immediately after installing and activating this plugin I receive a 503 error
   in my WP admin. The only way I figured out how to resolve this was to delete 
   your plugin via FTP.
 * Any advice or suggestions please? Any known conflicts that would cause this?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [Njones35](https://wordpress.org/support/users/njones35/)
 * (@njones35)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/503-error-44/#post-16001286)
 * Hi [@tictubso](https://wordpress.org/support/users/tictubso/)
 * There are no known conflicts that would cause an immediate 503 error. For this
   type of error I would always investigate security plugins first, but I’ve personally
   used all the major ones without issue.
 * The best way to test this would be go through the following steps:
    [https://formidableforms.com/knowledgebase/what-plugins-are-known-to-cause-conflicts/#kb-how-to-find-a-conflict](https://formidableforms.com/knowledgebase/what-plugins-are-known-to-cause-conflicts/#kb-how-to-find-a-conflict)
 * If you can install without issue while your website is running under these default
   conditions, you can reactivate your plugins, one at a time, and test after each
   activation to see when the 503 error reappears. When it does, the last plugin
   activated is the likely source of your problems.
    ———-
 * We understand that testing like this on a live site isn’t always possible, so
   we recommend doing this testing on a copy of the site. Some hosts have an easy
   way to create a staging site. If yours doesn’t, you can copy your site using 
   free plugins like
    All-in-One WP Migration, Duplicator, or any other plugin or
   system you like. Your host may also be willing to create a staging site for you
   if you ask.
 * Let me know if you have any questions about this.
 *  Thread Starter [tictubso](https://wordpress.org/support/users/tictubso/)
 * (@tictubso)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/503-error-44/#post-16025166)
 * Thanks for the reply. The 503 error does not appear until the Formidable Forms
   plugin is activated. It seems to be the only one causing issues, no conflicts
   which is what I originally thought.
 * Further, I reached out to my host about this and they replied:
 * > However, I did notice your Disk Space and very close to capacity (8.73GB/ 10GB).
   > Should you wish to install a plugin/ theme/ content that is over 1.5GB you 
   > will likely run into this error again.
   > I recommend either upgrading your diskspace or removing any unused/ unwanted
   > files to clear some space.
 * So, how resource intense is your plugin?
 *  [Aakash](https://wordpress.org/support/users/aakash8/)
 * (@aakash8)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/503-error-44/#post-16025174)
 * [@tictubso](https://wordpress.org/support/users/tictubso/)
 * You mentioned the issue goes away when disabling Formidable, but could you please
   go through the [steps to find a conflict](https://formidableforms.com/knowledgebase/what-plugins-are-known-to-cause-conflicts/#kb-how-to-find-a-conflict)
   too.
 * Try disabling all plugins besides Formidable Forms and switching to a default
   WordPress theme like `Twenty Twenty Two` and see if the issue still happens? 
   If not, enable plugins one by one until you find the one which causes the issue,
   and share the info with both plugin developers.
 * The plugin is used on many sites and has no known optimization issues that should
   cause this. But each WordPress environment is unique.
 * As for the disk space, that’s probably unrelated to Formidable as form submissions(
   unless they contain large file uploads) take up very little space. You could 
   use a [disk space plugin](https://kinsta.com/blog/disk-usage-wordpress/) to find
   large files and free up data.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘503 error’ is closed to new replies.

 * ![](https://ps.w.org/formidable/assets/icon-256x256.png?rev=2588749)
 * [Formidable Forms - WordPress Form Builder for Contact Forms, Calculators, Quizzes & More](https://wordpress.org/plugins/formidable/)
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 * 3 replies
 * 3 participants
 * Last reply from: [Aakash](https://wordpress.org/support/users/aakash8/)
 * Last activity: [3 years, 9 months ago](https://wordpress.org/support/topic/503-error-44/#post-16025174)
 * Status: resolved