Crash when piping videos from youtube app

[wnaBee]

Exception

• User Action: requested stream
• Request: https://youtu.be/3heNWlMFMQA opened with video_player
• Content Country: GB
• Content Language: en-GB
• App Language: en_GB
• Service: YouTube
• Version: 0.21.5
• OS: Linux Android 11 - 30

Crash log

java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
	at java.io.StringReader.<init>(StringReader.java:50)
	at com.grack.nanojson.JsonParser$JsonParserContext.from(Unknown Source:6)
	at org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor.fetchVideoInfoPage(YoutubeStreamExtractor.java:802)
	at org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor.onFetchPage(YoutubeStreamExtractor.java:731)
	at org.schabi.newpipe.extractor.Extractor.fetchPage(Extractor.java:54)
	at org.schabi.newpipe.extractor.stream.StreamInfo.getInfo(StreamInfo.java:68)
	at org.schabi.newpipe.extractor.stream.StreamInfo.getInfo(StreamInfo.java:64)
	at org.schabi.newpipe.util.ExtractorHelper.lambda$getStreamInfo$3(ExtractorHelper.java:115)
	at org.schabi.newpipe.util.-$$Lambda$ExtractorHelper$YTHJjScxCJNO1LTCqs3IKy35iyY.call(Unknown Source:4)
	at io.reactivex.rxjava3.internal.operators.single.SingleFromCallable.subscribeActual(SingleFromCallable.java:43)
	at io.reactivex.rxjava3.core.Single.subscribe(Single.java:4813)
	at io.reactivex.rxjava3.internal.operators.single.SingleDoOnSuccess.subscribeActual(SingleDoOnSuccess.java:35)
	at io.reactivex.rxjava3.core.Single.subscribe(Single.java:4813)
	at io.reactivex.rxjava3.internal.operators.maybe.MaybeFromSingle.subscribeActual(MaybeFromSingle.java:41)
	at io.reactivex.rxjava3.core.Maybe.subscribe(Maybe.java:5330)
	at io.reactivex.rxjava3.internal.operators.maybe.MaybeConcatArray$ConcatMaybeObserver.drain(MaybeConcatArray.java:153)
	at io.reactivex.rxjava3.internal.operators.maybe.MaybeConcatArray$ConcatMaybeObserver.request(MaybeConcatArray.java:78)
	at io.reactivex.rxjava3.internal.operators.flowable.FlowableElementAtMaybe$ElementAtSubscriber.onSubscribe(FlowableElementAtMaybe.java:66)
	at io.reactivex.rxjava3.internal.operators.maybe.MaybeConcatArray.subscribeActual(MaybeConcatArray.java:42)
	at io.reactivex.rxjava3.core.Flowable.subscribe(Flowable.java:15753)
	at io.reactivex.rxjava3.internal.operators.flowable.FlowableElementAtMaybe.subscribeActual(FlowableElementAtMaybe.java:36)
	at io.reactivex.rxjava3.core.Maybe.subscribe(Maybe.java:5330)
	at io.reactivex.rxjava3.internal.operators.maybe.MaybeToSingle.subscribeActual(MaybeToSingle.java:46)
	at io.reactivex.rxjava3.core.Single.subscribe(Single.java:4813)
	at io.reactivex.rxjava3.internal.operators.single.SingleObserveOn.subscribeActual(SingleObserveOn.java:35)
	at io.reactivex.rxjava3.core.Single.subscribe(Single.java:4813)
	at io.reactivex.rxjava3.core.Single.subscribe(Single.java:4799)
	at org.schabi.newpipe.RouterActivity$FetcherService.handleChoice(RouterActivity.java:693)
	at org.schabi.newpipe.RouterActivity$FetcherService.onHandleIntent(RouterActivity.java:665)
	at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:77)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loop(Looper.java:246)
	at android.os.HandlerThread.run(HandlerThread.java:67)

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[AudricV]

Duplicate of #6403. Also, please use issue templates the next time you open an issue.