Refreshing Facebook with Custom Connector

Hi,

I have a simple report connected to my facebook pages using a Facebook Pages Custom Connector with a connection to my Facebook app where I have all the oauth redirect URL already declared in my facebook app.

I'm loading my report in Power BI Desktop without any problem.

But when I publish my report and try to refresh my dataset, I do see my personal gateway but I have to update my credentials. When I try to do so, I have an error message saying :

Failed to update data source credentials: Hide details

Do I have to register more URL on my app to make it work ?

Thank you