My 'My Passport Studio' is not being recognized anymore.

So 'My Passport Studio (1TB)" was working fine last week, then for some reason it was being Ejected by itself. I realized the reason it was being ejected was because it was FULL, so I started deleting stuff off for more space. Once I deleted a few things and empty the trash bin and I restarted my computer and then that's when the problem of my External Passport Drive not showing up at all on my desktop nor in Finder.

Please, can anyone help?

I have a lot of big projects I need to get done and out by this week 😟