Admob code 0 when trying to load banner

Hi, I am making a app and I recently tried to implement a simple admob banner on the bottom of the screen however when I tried to load the ad, it would show a admob error 0.

Things I tried:

  • Checking the Admob ID
  • The component is visible on the IDE (not hidden)
  • Not loading the ad on initialise
  • Did some searching on the forums related to the error code