Do you have paid plan or it is a free version? If it is a free version you can subscribe to one of our paid plans and you can edit translations . Please check our website to compare the features https://gtranslate.io#pricing
To edit translated versions you should add ?language_edit=1 to the end of the URL. For example domain.com/fr?language_edit=1 or fr.domain.com?language_edit=1 . You can find more info here https://gtranslate.io/docs/58-gtranslat ... anslations