Issue with Opening a Folder

I can open everything in my WD external save for the most important folder - the one that I store all my projects for work in.

Everytime I try to open it, it stops responding and goes back to E: as if I had never clicked it. Worked fine yesterday and I haven’t done any unsafe shutdowns or anything like that.

Anyone have any ideas because this is INCREDIBLY frustrating.

Also says that the “Quick Drive Test” failed. Whatever that is.