OnlyTheOnline
Log in
Get Help Now
errorWordfence•errorfatal errorcodePHPerrorerrorinfoWordfenceerror_outlinescan error•star_halfUncommon•warningModerate

Wordfence scan failed: Uncaught Error: Class ‘Wordfence’ not found

The scan stops because Wordfence does not load its main class. The plugin tries to include a file that is missing, unreadable, or incompatible with the current PHP version. This prevents the class definition from being executed and triggers a fatal error.

The error appears in the admin area, disables the Wordfence menu, and blocks all future scans until the underlying issue is resolved.

Symptoms

[dashicons-warning]
Scan failed message
The dashboard shows a red notice that the scan failed and no results are displayed.
[dashicons-admin-tools]
Fatal error banner
A banner at the top of the admin screen displays the uncaught error with file path and line number.
[dashicons-no]
Wordfence menu disappears
After a page refresh the Wordfence menu item is missing from the admin sidebar.
[dashicons-email]
Email alert with stack trace
Wordfence sends an email that contains the same fatal‑error stack trace.

Common Causes

Incomplete plugin update
The update stopped before all required files were copied, leaving the class file absent.
Missing core files or wrong permissions
Key files in the lib folder are deleted, renamed, or have permissions that block reading.
Autoloader path broken
The internal require path points to a location that no longer exists after a move or symlink change.
PHP version older than required
The site runs a PHP version below 7.4, so the class file fails to parse and never defines the class.
Need this fixed right now?

Don't waste your day debugging. Our experts can Fix your issues in under 2 hours.*

Get this issue fixed

Success Rate

100% Guaranteed

Starting from

$35 /hour
99+

Trusted by Business Owners

“I spent 3 days trying to fix the Elementor loading loop. These guys fixed it in 20 minutes. Lifesavers!”

— Sarah J., Web Designer

Related Issues

contact_mail
Contact Form 7: REST API request failed: 503 Service Unavailable
A 503 Service Unavailable response stops Contact Form 7 from sending data...
apiREST APIerror503descriptioncontact-form-7
contact_mail
Contact Form 7: REST API request failed: 429 Too Many Requests

The form tries to send data through the WordPress REST API. The...

apiREST APIerrorerrorsecurityfirewalldescriptioncontact-form-7settingsserver_configuration
contact_mail
Contact Form 7: REST API request failed: 401 Unauthorized

The form tries to send data via the WordPress REST API. The...

apiREST APIadmin_panel_settingspermissionsdescriptioncontact-form-7lock401
contact_mail
Contact Form 7: File upload error: temporary directory missing

The error appears when Contact Form 7 cannot locate a writable temporary...

codePHPcloud_offupload erroradmin_panel_settingspermissionsdescriptiontemporary filedescriptioncontact-form-7
contact_mail
Contact Form 7: Mail (2) sending failed: PHP mail() function disabled

Contact Form 7 reports a failure for Mail (2) when the PHP...

codePHPerrorerrordescriptioncontact-form-7mailMailsettingsserver_configuration
contact_mail
Contact Form 7: Mail (2) sending failed: SSL certificate verification failed

Contact Form 7 reports a failure when trying to send the secondary...

errorerrorlocksslcodecURLdescriptioncontact-form-7