Joomla Free extensions

Hello, I need your help.
I created the app in the Facebook Developer.
When I click in the frontend Login with facebook, I always get an error
"This redirect failed because the redirect URI is not whitelisted in the app's client OAuth settings." Make sure Client and Web OAuth are both valid and valid Redirect URIs."

I have already tried everything and read a lot, but I can not get the app up and running.
Please help.
I can give you access to Joomla and Facebook Developer.

Best regard
Peter

Hello.
I got it running now.
Unfortunately I still have some error messages on the homepage, please have a look at the screenshot.
I have sent you my access data via the contact form.

Best regards
Peter

Hello Peter
Sorry for delay feedback
We have fixed the problem and now i think it work fine. You can check it
Thank you for using our products
Best regards
Bach Pham

I get similar error

After I authorize Facebook, I'm sent back to the page, but see this...

Hello Thomas Thrane
Can you send me joomla admin and your Facebook account via contact form? So we can check and help you
Best regards
Bach Pham

Hi!

I can send Joomla login, but I won't send you Facebook login?