What is the default color profile that I should be using in Adobe Illustrator CC 25.2.1?
I downloaded a vector file from the internet (yes, I know. This isn't good). It automatically opened in my Adobe Illustrator, displaying a muted blue, with this error message.

Now, every vector file that I open has muted colors, due to this "Adobe Illustrator 6.0" default.
Question: How do I stop this weird muted color issue by happening? What do I reset my color profile to???