When renewing the license of a Plugin, without an active Promob license in the account, or without a license of Promob being renewed with the Plugin, the message Dear customer, you are trying to renew a plugin without having an active. Promob license, thus your plugin will not work. To continue with the process you need to also renew a Promob.
To renew the Plugin, you must also renew the license of Promob.