Hey there,

I am really sorry for the delay of this reply as it is a weekend for us here.

Hm, currently I have no ideas why it keep hitting invalid token when you click on the subscription button from your frontend.

May i know your live site have this issue before?

By the way, I have temporary commented one line of code from this file JoomlaFolder\components\com_easyblog\views\subscription\view.ajax.php , it should show the pop up now.