Yes, sorry and thank you for answering.
I put shortcode on a page that I did test and when I visualize the page you can not see anything, it is simply empty as if you had not written anything.
I know the EOT is never set for someone with a subscription but I read in the article "The [s2Eot /] shortcode can be used to display a user's EOT (End of Term) time; i.e., the date when the customer will lose access. Or, if an EOT cannot be determined, an NPT (next payment time) can be displayed. For instance, if the customer has an ongoing recurring plan, there is no fixed EOT time. In this case, it is more appropriate to display the NPT (next payment time)." but I don't know if I must add something for the shortcode, I have tried use [s2Eot mode="fixed" /] for display EOT and works fine when exist an EOT time, and [s2Eot mode="next" /] for display next payment date but appears N/A in the place that the date should appear, I hope to have explained correctly, thank you very much for the help, best regards!