I have reached out to the template creator's website and Magento support for assistance, unfortunately, I have not received any response so far.
Despite installing a custom theme that is said to be compatible with the latest version of Magento, the CSS is not loading on my website at all.
If you'd like to take a look, you can visit the page at shop.dearearth.net.
This website is running on a fresh installation of Magento along with a new theme and database.
I have a hunch that this issue could be resolved relatively quickly.
Thank you for taking the time to review this matter.