sequelize.sync throws 42P01 error

[christian-hess-94]

I made an API based on this tutorial. I had to abandon the project for a few months, but now I need to restart it. Problem is, when trying to run sequelize.sync, it throws an error.
I've published an issue directly to sequelize, but if anyone can help me discover what is throwing this particular error I would be greatly appreciated.

Issue link: sequelize/sequelize#12467