I tried playing the game but received this error after the customization of the MC. I'm using Mac. 
Hi there! This seems to be an issue with your Mac version. Try out this solution:
For Mac users, if you encounter an error when you try to create a character at the beginning of the game, please follow these steps: - Locate the folder Tailor Tales\Game.app\Contents\MacOS - Open up the game by clicking the file "nwjs". This should open the debug window as well, simply minimize it and play the game as normal!