RemNote will not open

I added a custom CSS to my RN, and now I can not even open RN on my app or online. How do I remove the CSS template if I cannot access my RN?

here is the link to the CSS i added :frowning:

Use the Custom CSS escape hatch. Also, the theme you are trying to install is several years out of date, so not much point trying to adapt it.

Thank you! This really helped