Hi Tatiana, have you installed EasyAppointments and Extension plugin. EasyAppointments is from official WordPress repo on address https://wordpress.org/plugins/easy-appointments/ and after you do that activate both plugins and then you can do the setup. Define at least one service, location and worker and connect those in at least one connection. Once that is done you can place short code on your page where you want to have customers form [[ea_bootstrap]]. That is simplest setup version :) Best regards, Nikola