InMobi Ads failed to load an ad with error

[monikaq4udev]

InMobi Interstitial failed to load an ad with error : Error Domain=com.inmobi.ads.requeststatus Code=6 "The SDK encountered an internal error."

Same issue encounter with banner ads format too.

[xiaopingtang]

Same issue!!! even if my placementId is open test mode to Global and add my test device already.