Facebook feed Error: (#12)

Thanks for contacting us. I would be glad to help out, can you please include these 3 things?

1. The shortcode you are trying to use.
2. An example link to the problem in question.
3. The report from the System Info page of our plugin. Click here if you are unsure how to do this. https://www.slickremix.com/docs/system-info-page/

Please start a new thread and include these 3 things.

1. The shortcode you are trying to use.
2. An example link to the problem in question.
3. The report from the System Info page of our plugin. Click here if you are unsure how to do this. https://www.slickremix.com/docs/system-info-page/

The field source was taken out a few versions ago, possibly you need to update to version 2.6.9.