Does anyone know why 'Plot Tools' at the top is greyed out here? I need it to do some probe analyses but no matter what I do, it won't become ungreyed. It's gray for any result plot I have active. I don't have 'Sketch' or anything active and I saved right before posting this. Totally lost... :/ Thank you!

I looked through about 5 other 'greyed out' threads but couldn't find a solution to this. I apologize.