You will need to have the fonts installed on the computer you’re rendering the design on. It will say in the “assets” section of the render which fonts were used in the design. This is a one-time setup to install the font(s) and once you have them on that computer it will be able to render the fonts properly forever after that.
In the mean time, if you use the “request render” feature in the top right menu of the Renderer, we can render the print file for you and provide it accurately until you get your print production computer all loaded up with the right fonts.
I’ll send you a zip file with the main fonts you’re probably missing.