Hi there,
The ENOENT error means that the program can't find the file in the location you've provided. Do you have a tab open in the Code Editor with the font file? Or is it on the Thumby? Are you sure your file path is correct? If you have a screenshot of your Code Editor with the location of the font file as well as the code, I may be able to help better.
Let me know!
Cheers,
RĂ©na