404 page

Hi @rhutch,

Thanks for reaching us,

You will need to use the Child Theme to change the 404-page content on the ColorMag theme. You can copy the 404-page content from the parent theme and paste it on the child theme. After that, you can modify the child theme. For creating the child theme, please check the guideline here: https://themegrill.com/blog/tutorial-creating-wordpress-child-theme/

Let me know if this helps you or not and I will be back.

Regards