How to fix the error: not a valid facebook page url?

So, recently I saw an error on a Facebook Page embedded to one of my blog. The error was:

error: not a valid Facebook page url

I tried Google for solutions but I couldn't find a relevant solution. And I realized many people are also facing the same issue with their Facebook Page integrated on their websites and blogs. Anyway, since I could not find a relevant solution to this Facebook error, I decided to investigate. And I found the cause of the error and thus, a solution as well.

In this post, we will check the cause of the error "error: not a valid Facebook page URL " and how to solve it.

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