WD My Passport 1 TB WDBACX0010BBK-01 files not found, and folders empty

I tried to access my documents which are visible formt the screen but when I click on the files, it states, files not found and when I try to access other folders where I had data, it states the folder is empty. This happened a couple of days ago and i thought I lost all my data, but when I went online and loaded the drivers, it worked. 

Today I am not able to access the data on my WD Passport portable drive again. 

Any ideas on what is happenning and how I can locate, access my files and prevent this from recurring over and over again??

Thank you in advance for any assistance with this issue. 

Very frustrated here!!

Hello,

Make sure to connect the drive directly to the back USB ports of the computer to make sure that the drive is receiving enough power.

Also make sure you are not using a cable longer than the original or a hub.

Joe