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blank screen on facebook after authorize

5 years 2 months ago #6831 by tomsson

I have installed AutoTweetNG v6.6.0,
With testing application work fine
but when I want to use own application have problem with STEP1 - AUTHORIZE
I filled up all of missing fields: APP ID/API KEY, APP SECRET, CANVAS PAGE
and when I try to do AUTHORIZATION redirect me to facebook empty facebook page.

What's wrong ?

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5 years 2 months ago #6832 by Support Team
Please, review the tutorial: How to AutoTweet from Your Own Facebook App

This is a common issue, associating the Canvas Page and the Secure Canvas URL.

Which is your Canvas Page defined in the AutoTweetNG channel?

Which is the Secure Canvas URL configured in the Facebook App Configuration ?

Also, send us these Screenshots: Channel Configutation - 1. Facebook App Definition, and Facebook App Configuration.


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5 years 2 months ago - 5 years 2 months ago #6834 by tomsson
here I send screenshots.
Now when I AUTHORIZE I have 404 ERROR page

I would like to buy PRO version but first I need to test on my site.

I did logout from FB and try again to AUTHORIZE and now I have

Warning: require_once(/home/zyzak2/domains/ [function.require-once]: failed to open stream: No such file or directory in /home/zyzak2/domains/ on line 18

Fatal error: require_once() [function.require]: Failed opening required '/home/zyzak2/domains/' (include_path='.:/usr/local/php/p53/lib/php') in /home/zyzak2/domains/ on line 18

I know what I did wrong:
I unpack facebook_auth_app_v6.6.0 in to
but I should to unpak to

and now this error "Warning: require_once..." gone

I chenge canvas Canvas URL: to:
and i chende Secure Canvas URL to:
in Application on facebook detail configuration.

and now in the component AutoTweet when I try to do AUTHORIZE have blank screen of facebook
Last edit: 5 years 2 months ago by tomsson.

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5 years 2 months ago #6836 by Support Team
1. Your SSL certificate is not valid:

The certificate is self-signed. Users will receive a warning when accessing this site unless the certificate is manually added as a trusted certificate to their web browser. You can fix this error by buying a trusted SSL certificate

None of the common names in the certificate match the name that was entered ( You may receive an error when accessing this site in a web browser. Learn more about name mismatch errors.
Common name:
Organization: s.c.
Location: Rzeszow, Podkarpacie, PL
Valid from February 3, 2013 to February 1, 2023
Serial Number: ac92be8da2d4b679
Signature Algorithm: sha1WithRSAEncryption

Facebook requires a Secure Canvas Url, with SSL enabled.

A SSL certificate must be purchased (like a domain name), and installed in your hosting. Please, check with your hosting provider. You can use an inexpensive SSL certificate (Eg namecheap's $2-8/yr, Thawte's 21 days trial SSL certificate, or

Facebook also offers a free option, based in Heroku hosting (but you need to know GIT protocol)

2. About your Canvas Url and Secure Canvas Url, you have two options:

A. Use Joomla Facebook App, according your menu:

Canvas Url:

Secure Canvas Url:

B. Create the directory /Facebook-App, and upload the standalone Facebook App files. They are not uploaded now. In this case:

Canvas Url:

Secure Canvas Url:


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