Cloudflare error 521 on my website

Same exact thing happened to me today!!!

https://alliancefootballclub.com/alliance-live/

I am facing the same issue.
“
Error 521 Ray ID: 20d78e705a65130b ? 2015-07-29 08:46:58 UTC
Web server is down
You
Browser
Working
Tokyo
CloudFlare
Working
uijquery.org
Host
Error
What happened?

The web server is not returning a connection. As a result, the web page is not displaying.
What can I do?
If you are a visitor of this website:

Please try again in a few minutes.
If you are the owner of this website:

Contact your hosting provider letting them know your web server is not responding. Additional troubleshooting information.

CloudFlare Ray ID: 20d78e705a65130b ? Your IP: 52.74.243.83 ? Performance & security by CloudFlare

What is this? Someone please help!

I have the same problem at https://elizondoarkitektura.com

The problem continues in local host too.

I am having the same problem! What is going on?

I am having the same problem.
Must be an issue on Cloudflare’s side, not sure though!

Does anyone know how to isolate what in the WP files are reliant on Cloudflare so I could maybe try and remove those files/requests?

Thanks

I am having this issue to. Will let you guys know if i find something.

Having this issue also

I HAVE NEVER SIGNED UP NOR INSTALLED ANYTHING FROM CLOUDFARE

and after this I will never consider it either

This is VERY invasive!

Yeah still there, i thought might have been from my cache plugin(wp-rocket), but its not even from that!! any solution anyone!!
I also called Godaddy and they said, has nothing to do with them, probably a bad plugin they said!! such a headache…

Same issue for me.

Never had any connections with Cloudflare and I see that message in the footer.
I’ve also checked every plugin that I installed and the error persist.

What the hell is it?

the issue is due to an external resource broken under cloudflare:
https://uijquery.org is not reachable anymore.
I guess the issue will be fixed in relative short time…

but If you want to fix it by yourself,
you need to identify who is calling that resource (search for wp_footer event hooks).

In my case the Uber Menu Plugin was the responsible:
locate the addaction in /plugins/ubermenu/ubermenu.php (about line 112)
and comment it

//add_action(‘wp_footer’, ‘wp_func_jquery’);

hope can help

You are the man. Mine was vc ultimate add ons.

Thanks

I have the same problem
Do You have any solutions?

The error message was gone when I deactivated the Revolution Slider.

But, instead of deactivating the Revolution Slider, I paste the following CSS in my theme’s style.css to hide the error at the bottom:

div#cf-wrapper {
display: none !important;
}

Hope this helps.

Hello, I have the same problem with this error .. 521 cloudfare
Can you adez me please .

waiting to read you .

https://www.iddhea.fr

Deactivate revslider. Will help for while. Helped to me.