Interstitial Unhandled promise rejection: Error: ERROR_CODE_NO_FILL id0

[Deivesilvaka]

my code is

const showInterstitial = async() => {

    const keys = {
        production: 'production key',
        development: 'development key'
    }

    await AdMobInterstitial.setAdUnitID(keys.production)

    await AdMobInterstitial.requestAdAsync({ servePersonalizedAds: true}).then(async(log) => {
        await AdMobInterstitial.showAdAsync().catch(err => console.log(err))
    }).catch(err => console.log(err))
}

and this error appears

[Unhandled promise rejection: Error: ERROR_CODE_NO_FILL]

• node_modules\react-native\Libraries\BatchedBridge\NativeModules.js:103:50 in promiseMethodWrapper
• node_modules@unimodules\react-native-adapter\build\NativeModulesProxy.native.js:15:23 in moduleName.methodInfo.name
• node_modules\expo-ads-admob\build\AdMobInterstitial.js:17:15 in
• node_modules\regenerator-runtime\runtime.js:63:36 in tryCatch
• node_modules\regenerator-runtime\runtime.js:293:29 in invoke
• node_modules\regenerator-runtime\runtime.js:63:36 in tryCatch
• node_modules\regenerator-runtime\runtime.js:154:27 in invoke
• node_modules\regenerator-runtime\runtime.js:189:16 in PromiseImpl$argument_0
• node_modules\react-native\node_modules\promise\setimmediate\core.js:45:6 in tryCallTwo
• node_modules\react-native\node_modules\promise\setimmediate\core.js:200:22 in doResolve
• node_modules\react-native\node_modules\promise\setimmediate\core.js:66:11 in Promise
• node_modules\regenerator-runtime\runtime.js:188:15 in callInvokeWithMethodAndArg
• node_modules\regenerator-runtime\runtime.js:211:38 in enqueue
• node_modules\regenerator-runtime\runtime.js:238:8 in exports.async
• node_modules\expo-ads-admob\build\AdMobInterstitial.js:17:15 in
• node_modules\regenerator-runtime\runtime.js:63:36 in tryCatch
• node_modules\regenerator-runtime\runtime.js:293:29 in invoke
• node_modules\regenerator-runtime\runtime.js:63:36 in tryCatch
• node_modules\regenerator-runtime\runtime.js:154:27 in invoke
• node_modules\regenerator-runtime\runtime.js:164:18 in PromiseImpl.resolve.then$argument_0
• node_modules\react-native\node_modules\promise\setimmediate\core.js:37:13 in tryCallOne
• node_modules\react-native\node_modules\promise\setimmediate\core.js:123:24 in setImmediate$argument_0
• node_modules\react-native\Libraries\Core\Timers\JSTimers.js:130:14 in _callTimer
• node_modules\react-native\Libraries\Core\Timers\JSTimers.js:181:14 in _callImmediatesPass
• node_modules\react-native\Libraries\Core\Timers\JSTimers.js:441:30 in callImmediates
• node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:387:6 in __callImmediates
• node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:135:6 in __guard$argument_0
• node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:364:10 in __guard
• node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:134:4 in flushedQueue

• [native code]:null in flushedQueue
• [native code]:null in invokeCallbackAndReturnFlushedQueue