Well first you need to get into your customs folder
if you don't know how to do that, I'll tell you.
This is how I do it, I don't use steam, it might/might not work with steam
Click on toribash once
Then right click
Then click on open file location
Then scroll up to custom, click on it
Find your custom folder
Delete everything inside it
then go ingame and /dl boerhae
Hope it works!