Facebook error “App not setup:still in development mode”

I have the same problem. This is something Addthis has to fix right?

If you press on the share button you get a popup. That popup shows the following error:

App is nog in ontwikkeling: Deze app bevindt zich nog in ontwikkelingsmodus, waar je geen toegang toe hebt. Meld je aan als geregistreerde testgebruiker of vraag een app-beheerder om toestemming.

Which translates roughly into:

App is still in development: This app is still in development mode, which you cannot access. Log in as a registered test user or ask an app administrator for permission.

• This reply was modified 4 years, 9 months ago by frenkieb. Reason: More information about the problem

Same problem, very annoying

• This reply was modified 4 years, 9 months ago by Stephen S.

Same problem. I sent them an email to report it. No response yet.

Same problem, same error message. From nothing no users cant share through AddThis at ALL of my Websites where im using AddThis.

The error is fixed, the popup displays a correct FB share form again.

Thanks