QMC series unable to Install app?

Hello everyone, I am unable to install an application using its WGT file with the help of Tizen studio.
During debugging my project in older Tv series ,its is running properly , but when I am doing the same on QMC signage TV , its showing unable to Install app

Have you created Samsung Tizen Distributor Certificates? You cannot use the Tizen.org generated distributor certificates.

Samsung Developer Relations