Hello,
thanks for reply.
I tried suggested steps (in the same order),now the buttone “Login and get my access token” seems not working anymore, more in details: facebook login page appears, i can login, skip the SlickRemix authorization for content management, the popup “waiting for retrieving access token” appearing and then automatically back to the plugin page but ID and Token fields are empty.
In facebook account/options I can see that SlickRemix application has been added.
Rgds,
E.