In order for the graphic templates to show properly on your computer, you will need to have the correct fonts installed on your computer.
There are several ways to do this and I will go through some options below.
Installing Fonts On Computer
The first method is to install the fonts directly on your computer. You can do this by downloading the fonts and double clicking on the font files to install.
The fonts will be located in the Fonts folder along with the other template files. The easiest way to install the fonts is just by double-clicking on the font file to install.
This may not work for all operating systems. If this is the case, you can troubleshoot by doing a web search for “How to install fonts for (your current operating system).”
You can also try these general recommendations from Google.
https://www.google.com/get/noto/help/install/
SkyFonts
Another option is to use a font manager like SkyFonts. This makes it easier to manage a large number of different fonts by activating when needed and deactivating when not in use.
SkyFonts can be downloaded for free at https://www.fonts.com/web-fonts/google