Fontconfig error: Cannot load default config file

Hello, that is because there is no default font with repl.it. I have experienced this with my code on canvas too, and I have created a solution.

1. Import the registerFont

const { registerFont } = require('canvas');

Append this line and don't replace it with previous imports.

2. Install a font.
   Go to like google fonts and then choose a font and install it. Then, unzip the folder and then drag the fonts in question to your repl.

3. Register the font.

registerFont('path/to/font.ttf', { family: 'InsertFontNameHere' });

4. Using the font

ctx.font = '30px InsertFontNameHere';

Hopes this helps! Be sure to accept it as the correct answer if it worked for you!