MT5 EA's avs Samples

 

Hello,

 

I just started using MT5 and tried to use the EA's.  In the Navigator there is the Expert Advisor folder with2 sub folders.  One is labeled Advisors the other Examples.  When I apply the EA from the folder Advisors it does not work.  When I apply one from the folder Exmples it does.  Why dooesn't the so called EA's ffrom the folder labled Advisors work?

Reason: