sdayman,
I am not sure what prouin did to correct the issue as they do not indicate what what they did to “sort it out”. However, from the symptom prouin described (“the feed get stuck to a week ago and not refreshing”) and if you are having the same issue you might wish to try this:
First make sure you are using the latest version of the plugin.
Go to your WordPress Dashboard – Facebook Feed – Customize – Misc (tabbed page) – scroll to the bottom of the page and make sure the last setting on the page “Force cache to clear on interval” is set to “Yes” and then click on “Save Changes” on that page.
Next go to your WordPress Dashboard – Facebook Feed – Settings – Configuration (tabbed page) and click on “Save Changes” at the bottom of that page as well which will ensure all current plugin settings are properly saved to the file.
If this does correct your issue then please post accordingly so others who might be experiencing the same problem can benefit from these instructions. If not then please submit a support request here so we can dig deeper on your behalf for you.