Hey,
Try to install the license via the cli (as far as I understand you just tried to print it from there). The complete procedure is explained here.
But usually you receive, together with the license itself in the same mail, also the right command to copy and paste into your SMS CLI in order to activate the license. If your license activation ran into a bug during activation you can also try to first delete the current license via "cplic del <license_signature>" and then install the new one with procedure linked above.
Regards,
Maik