R Project Not Recognized as a Package

Hello, I'm not sure what to do from here. I've been developing a package in R for a time now for intended release to CRAN, but one day after loading in the project to continue working on it, the devtools no longer works and tells me that my project is not a package. See below.

The first image is an error message when trying to use devtools, and the second image is the error message that I get when I try to check the package. You can see in my directory that I have a DESCRIPTION file, as well as the contents of the DESCRIPTION file shown.

I'm at a loss as to why devtools is no longer working or recognizing this project as a package. I've looked all over and can't find the same problem in other forums, or their suggested solutions don't work for me. What could this be?

Thanks for any help.