Hello!! First, thank you very much for your help.
If the activation problem has been solved, but the next payment date is not calculated automatically, that is, once the subscription is activated, the same date prior to payment remains on the next payment date, that does not happen when the PeproDev WooCommerce Receipt Uploader plugin is disabled, moreover after manually completing the payment in WP Admin I get the following error always the following error:
“There has been a critical error on this website. Please check your site administrator email inbox for instructions.”