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The VRBO Crawl method is currently down, however you can still get the reviews using the Review Funnel method. I'm working the Crawl method, but VRBO is getting at blocking web crawlers.
I've been developing on 8.3 so it should work. Make sure you are on the latest version of the plugin 12.5.2
Facebook has to be a publicly viewable page when not logged in.
Make sure you are using the latest version 15.5.2
Not with the plugin, but you could pull the reviews straight out of your wordpress database. Look for the table called. xx_wpfb_reviews
I just pushed out a beta version 12.5.1 that allows you to do this. Just go to the Account page inside the plugin and check the "Join the Beta program" check box. Then the beta version should show up on the Updates page in WordPress. After you install the update. Deactivate and re-activate the plugin. That should force all the database table to update.
What are the search terms or place id you are using?
Customer support service by UserEcho
Check it now. That "still working... number 1 in queue" means that you are the next in line.