No error, everything set in place but both ads type don't show

[chinyart]

Hi, @sunnycupertino
i really appreciate your work,
it is awesome

i did everything placed in the readme for the app but no ads seems to show up
i set isTesting to true
i used on device ready to run initAd() and did some testing on if my app recognizes the plugin but it recognizes it still ads dont show

would you help me with this issue?