AdropErrorCode

Code	Description
ERROR_CODE_NETWORK	The network status is unstable.
ERROR_CODE_NOT_TARGET_COUNTRY	Unable to use SDK when the device country is not supported
ERROR_CODE_INVALID_UNIT	Ad unit ID is not valid.
ERROR_CODE_AD_INACTIVE	There are no active advertising campaigns.
ERROR_CODE_AD_NO_FILL	Unable to receive ads that meet the criteria. Please retry.
ERROR_CODE_AD_LOADING	Waiting ad response from server after request ad.
ERROR_CODE_AD_DUPLICATED	You can't load again after ad received successfully.
ERROR_CODE_AD_EMPTY	Unable to show ad before ad received.
ERROR_CODE_AD_SHOWN	This ad was shown already.