Step-1: Log-in to the Cadjin CMS .
Step-2: In the left side menu, under Advertisement, go to the Campaign section.
Step-3: To make an Advertisment Enable / Disable, you need to Enable / Disable the Campaign under which the advertisment is running. Now select the Campaign you need to Enable / Disable. Then make the Status of the Campaign Enable / Disable, as you want.
Thats it ! This way you can Enable / Disable an Advertisement .