Unable to load the facebook registration form

when a user try to registration with facebook. it shows below error. what is the problem?

Unable to load the registration form for Thrive. You may have previously blocked this app on Facebook. Go to your Facebook privacy settings to unblock this app. (Error: Invalid 'client_id'.)

  • Jack Kitterhing

    Hi there @meher_t_issty

    I hope that you are well today,

    Sorry to see your having problems with the Ultimate facebook plugin and more specifically the registration part.

    When you try it, are you already logged into facebook itself?
    Can you check that the URL is correct in the Facebook App please, as this could cause a problem if that's incorrect.
    Also do you have any other Facebook plugins installed?

    Can I have a link to your site please if possible?

    Thank you!

    Kind Regards

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