That will not allow you to translate strings (you will need the "WPML String Translation" add-on installed on the site).
So you would need to be at least on the "WPML Multilingual CMS" type of membership: https://wpml.org/purchase
After that, you will be able to go here (https://wpml.org/account/downloads - select "manual download"), download "WPML String Translation", go on your site's backend > Plugins > Add new > Upload > Select the zip file you downloaded > install it and activate it > then go to WPML > String Translation, search for the title and tag line and translate them.
Please let me know how things go and if you were able to get those parts translated.
Kind regards,
Mihai Apetrei
This ticket is now closed. If you're a WPML client and need related help, please open a new support ticket.