Welcome to the forum

Here's the procedure to connect gmail with FB
https://forum.topeleven.com/tutorial...op-eleven.html

Read carefully, and if you have any doubt you can contact the support via"?" button ingame or too, here in the forum you have the link to the form in the bugs subforum;
https://forum.topeleven.com/bugs-tec...hift-form.html

Remember you need to have the FB app open and you must be logged in to link the gmail team with the FB.