Phillip The cpanel installation system just get something wrong sometimes, if I didn't misunderstood what you mean, you can reinstall Flarum by using composer, or directly from source code. If you only want to change the web root for your website, go to the "subdomain" section of cpanel, find the domain, for which you want to change the host root, and click the "edit" button to change the host root. 🦊🦊 BTW, if the previous methods I mentioned are not suitable for you, try to upload something to your /public dictionary manually, to test if it's due to a permission error of cpanel.🦊