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WordPress Plugin Errors and Troubleshooting

Diagnose plugin conflicts, failed activations, update breakages, high resource usage, and plugins that crash the front end or admin.

38 topics · 3 published guides

Common symptoms

  • Site broke right after a plugin update
  • Plugin will not activate, deactivate, or delete
  • Critical error naming a plugin file
  • Checkout or page builder breaks with one plugin enabled
  • High CPU or memory when a plugin is active

Start here

  1. 01 Identify the last plugin changed
  2. 02 Disable the suspect plugin via file manager if admin is down
  3. 03 Compare PHP and WordPress version compatibility
  4. 04 Check for a second security or cache plugin conflict

Most common problems

6 signals
Intermediate Plugin Errors

WordPress plugin causes critical error

Learn what causes “WordPress plugin causes critical error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

Visitors or admins encounter: WordPress plugin causes critical error

Intermediate Plugin Errors

WordPress plugin conflict

Learn what causes “WordPress plugin conflict,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

Visitors or admins encounter: WordPress plugin conflict

Intermediate Plugin Errors

WordPress plugin update broke website

Learn what causes “WordPress plugin update broke website,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

Visitors or admins encounter: WordPress plugin update broke website

On the board Intermediate

WordPress plugin breaks checkout

Learn what causes “WordPress plugin breaks checkout,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

On the board Intermediate

WordPress plugin causes 500 error

Learn what causes “WordPress plugin causes 500 error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

On the board Intermediate

WordPress plugin causes blank page

Learn what causes “WordPress plugin causes blank page,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

All problems in this category

Showing 38 topics · 3 published guides

  • P1 · intermediate

    WordPress plugin causes critical error

    Learn what causes “WordPress plugin causes critical error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

  • P1 · intermediate

    WordPress plugin conflict

    Learn what causes “WordPress plugin conflict,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

  • P1 · intermediate

    WordPress plugin update broke website

    Learn what causes “WordPress plugin update broke website,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

  • P2 · intermediate

    WordPress plugin breaks checkout

    Learn what causes “WordPress plugin breaks checkout,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin causes 500 error

    Learn what causes “WordPress plugin causes 500 error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin causes blank page

    Learn what causes “WordPress plugin causes blank page,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin conflict after WordPress update

    Learn what causes “WordPress plugin conflict after WordPress update,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin creates redirect loop

    Learn what causes “WordPress plugin creates redirect loop,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin incompatible with PHP version

    Learn what causes “WordPress plugin incompatible with PHP version,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin slows down website

    Learn what causes “WordPress plugin slows down website,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin update failed

    Learn what causes “WordPress plugin update failed,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P2 · intermediate

    WordPress plugin will not activate

    Learn what causes “WordPress plugin will not activate,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin activation failed

    Learn what causes “WordPress plugin activation failed,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin API connection failed

    Learn what causes “WordPress plugin API connection failed,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin breaks page builder

    Learn what causes “WordPress plugin breaks page builder,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin cannot create database tables

    Learn what causes “WordPress plugin cannot create database tables,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin cannot write files

    Learn what causes “WordPress plugin cannot write files,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin causes 503 error

    Learn what causes “WordPress plugin causes 503 error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin causes high CPU usage

    Learn what causes “WordPress plugin causes high CPU usage,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin causes high memory usage

    Learn what causes “WordPress plugin causes high memory usage,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin causes REST API error

    Learn what causes “WordPress plugin causes REST API error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin class not found

    Learn what causes “WordPress plugin class not found,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin conflict after PHP update

    Learn what causes “WordPress plugin conflict after PHP update,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin cron job not running

    Learn what causes “WordPress plugin cron job not running,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin database error

    Learn what causes “WordPress plugin database error,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin disappeared after migration

    Learn what causes “WordPress plugin disappeared after migration,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin function not found

    Learn what causes “WordPress plugin function not found,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin incompatible with current WordPress version

    Learn what causes “WordPress plugin incompatible with current WordPress version,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin license will not activate

    Learn what causes “WordPress plugin license will not activate,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin missing files

    Learn what causes “WordPress plugin missing files,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin settings not saving

    Learn what causes “WordPress plugin settings not saving,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin shortcode not working

    Learn what causes “WordPress plugin shortcode not working,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin widget missing

    Learn what causes “WordPress plugin widget missing,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin will not deactivate

    Learn what causes “WordPress plugin will not deactivate,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin will not delete

    Learn what causes “WordPress plugin will not delete,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin will not update

    Learn what causes “WordPress plugin will not update,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin works for administrator but not visitors

    Learn what causes “WordPress plugin works for administrator but not visitors,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon
  • P3 · advanced

    WordPress plugin works in admin but not on front end

    Learn what causes “WordPress plugin works in admin but not on front end,” how to recognize symptoms, and safe steps to diagnose and repair the problem.

    Coming soon

Related categories

Frequently asked questions

How do I disable a plugin without wp-admin? +
Rename the plugin folder inside wp-content/plugins using hosting file manager or SFTP. WordPress will deactivate it automatically.

Repair dispatch

Still Need Help Fixing Your Website?

If you are not comfortable editing website files, changing server settings, repairing a database, or troubleshooting a live website, professional help may prevent additional damage or downtime. We will review the problem before accepting the repair.

  • You will receive a clear explanation of the likely cause.
  • We will tell you if the issue falls outside our repair scope.
  • No additional work will be performed without approval.
  • A backup should be created whenever access and website condition allow it.
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