All my notebooks as well as Files have dissapearedd

I usually accees anaconda during the day to write down lectur notes as well as do homeworks , yesterday i used it to write down some homework information for my robortics class, however today when i triead ro go back to my folders to use them all had dissapeared and clicking on histoy for linkswhere i had previously accesed them woudl lead me to the NBotebook but with a message box stating "directory Path was not found ". any idea on why this happened and how i can recover my lost files im in the middle of my semester and all my notes are there.

Sometimes this results because you are logging in with a different email address. Can you confirm you are on the same account?