Title: Hummingbird Errors
Last modified: August 26, 2020
---
# Hummingbird Errors
* Resolved [jamesprw](https://wordpress.org/support/users/jamesprw/)
* (@jamesprw)
* [5 years, 9 months ago](https://wordpress.org/support/topic/hummingbird-errors/)
* I had used Hummingbird before without issues, but now when I activate the plugin
I get these errors:
Notice: register_rest_route was called incorrectly. The
REST API route definition for hummingbird/v1/status/(?P[\w-]+) is missing the
required permission_callback argument. For REST API routes that are intended
to be public, use __return_true as the permission callback. Please see Debugging
in WordPress for more information. (This message was added in version 5.5.0.)
in /home4/jamesprw/public_html/wp-includes/functions.php on line 5225
* Notice: register_rest_route was called incorrectly. The REST API route definition
for hummingbird/v1/clear_cache/(?P[\w-]+) is missing the required permission_callback
argument. For REST API routes that are intended to be public, use __return_true
as the permission callback. Please see Debugging in WordPress for more information.(
This message was added in version 5.5.0.) in /home4/jamesprw/public_html/wp-includes/
functions.php on line 5225
* Notice: register_rest_route was called incorrectly. The REST API route definition
for hummingbird/v1/test is missing the required permission_callback argument.
For REST API routes that are intended to be public, use __return_true as the
permission callback. Please see Debugging in WordPress for more information. (
This message was added in version 5.5.0.) in /home4/jamesprw/public_html/wp-includes/
functions.php on line 5225
* Any help is appreciated.
Viewing 4 replies - 1 through 4 (of 4 total)
* [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/)
* (@wpmudev-support1)
* [5 years, 9 months ago](https://wordpress.org/support/topic/hummingbird-errors/#post-13316149)
* Hi [@jamesprw](https://wordpress.org/support/users/jamesprw/),
* This is something our devs are already on and we should have a release soon to
address these notices.
Note that since these are only notices and wouldn’t cause
any issues with your site functionality.
* Cheers,
Predrag
* [katmacau](https://wordpress.org/support/users/katmacau/)
* (@katmacau)
* [5 years, 8 months ago](https://wordpress.org/support/topic/hummingbird-errors/#post-13451984)
* Hello. I am also getting the same issues. It only happens when I have gutenberg
running (Wp 5.5.1). When I switch to classic editor the error disappears. With
classic editor disabled. The error appears again. Any updates on when a fix will
be available?
* On page editor view I also see this in the errors after the above errors.
* Warning: Cannot modify header information – headers already sent by (output
started at /home/mydomain/public_html/wp-includes/functions.php:5225) in /
home/mydomain/public_html/wp-admin/admin-header.php on line 9
* Plugin Support [Saurabh – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support7/)
* (@wpmudev-support7)
* [5 years, 8 months ago](https://wordpress.org/support/topic/hummingbird-errors/#post-13458034)
* Hello [@katmacau](https://wordpress.org/support/users/katmacau/),
* I tried replicating the same on my end but could not replicate it. This generally
means that the headers are sent by some other plugin or function. Could you help
me with the plugin version and PHP version you are currently on to try and replicate
on my end with specific things?
* Also, could you please open a fresh thread for the same for further checks and
help as this thread below to someone else. Any communication we make would be
sent to them too on emails causing unwanted disturbance to them in this way.
We can excuse them from this by having a fresh thread.
* Thank you,
Prathamesh Palve
* [katmacau](https://wordpress.org/support/users/katmacau/)
* (@katmacau)
* [5 years, 8 months ago](https://wordpress.org/support/topic/hummingbird-errors/#post-13460999)
* Thank you. I’ve created a new thread here: [https://wordpress.org/support/topic/hummingbird-rest-api-route-errors/](https://wordpress.org/support/topic/hummingbird-rest-api-route-errors/)
Viewing 4 replies - 1 through 4 (of 4 total)
The topic ‘Hummingbird Errors’ is closed to new replies.
* 
* [Hummingbird Performance - Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN](https://wordpress.org/plugins/hummingbird-performance/)
* [Frequently Asked Questions](https://wordpress.org/plugins/hummingbird-performance/#faq)
* [Support Threads](https://wordpress.org/support/plugin/hummingbird-performance/)
* [Active Topics](https://wordpress.org/support/plugin/hummingbird-performance/active/)
* [Unresolved Topics](https://wordpress.org/support/plugin/hummingbird-performance/unresolved/)
* [Reviews](https://wordpress.org/support/plugin/hummingbird-performance/reviews/)
## Tags
* [hummingbird](https://wordpress.org/support/topic-tag/hummingbird/)
* 4 replies
* 4 participants
* Last reply from: [katmacau](https://wordpress.org/support/users/katmacau/)
* Last activity: [5 years, 8 months ago](https://wordpress.org/support/topic/hummingbird-errors/#post-13460999)
* Status: resolved