Edit: for anyone having the same issue, post the error log and mention if you have logged in.
Edit2: solution: Log out -> force close(If you not familiar with that, restart the phone) -> restart, make sure you are not logging in when you open the app
Exception
Crash log
org.schabi.newpipe.extractor.exceptions.ExtractionException: org.schabi.newpipe.extractor.exceptions.ExtractionException: IOS player response is not valid
at org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor.onFetchPage(YoutubeStreamExtractor.java:946)
at org.schabi.newpipe.extractor.Extractor.fetchPage(Extractor.java:60)
at org.schabi.newpipe.extractor.stream.StreamInfo.getInfo(StreamInfo.java:84)
at org.schabi.newpipe.extractor.stream.StreamInfo.getInfo(StreamInfo.java:79)
at org.schabi.newpipe.util.ExtractorHelper.lambda$getStreamInfo$3(ExtractorHelper.java:131)
at org.schabi.newpipe.util.ExtractorHelper.$r8$lambda$YTHJjScxCJNO1LTCqs3IKy35iyY(Unknown Source:0)
at org.schabi.newpipe.util.ExtractorHelper$$ExternalSyntheticLambda5.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$ElementAtSubscriber.onSubscribe(FlowableElementAtMaybe.java:66)
at io.reactivex.rxjava3.internal.operators.maybe.MaybeConcatArray.subscribeActual(MaybeConcatArray.java:42)
at io.reactivex.rxjava3.core.Flowable.subscribe(Flowable.java:15868)
at io.reactivex.rxjava3.internal.operators.flowable.FlowableElementAtMaybe.subscribeActual(FlowableElementAtMaybe.java:36)
at io.reactivex.rxjava3.core.Maybe.subscribe(Maybe.java:5330)
at io.reactivex.rxjava3.internal.operators.maybe.MaybeToSingle.subscribeActual(MaybeToSingle.java:46)
at io.reactivex.rxjava3.core.Single.subscribe(Single.java:4813)
at io.reactivex.rxjava3.internal.operators.single.SingleSubscribeOn$SubscribeOnObserver.run(SingleSubscribeOn.java:89)
at io.reactivex.rxjava3.core.Scheduler$DisposeTask.run(Scheduler.java:644)
at io.reactivex.rxjava3.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:65)
at io.reactivex.rxjava3.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:56)
at java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:307)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
at java.lang.Thread.run(Thread.java:1012)
Caused by: org.schabi.newpipe.extractor.exceptions.ExtractionException: IOS player response is not valid
at org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor$4.onSuccess(YoutubeStreamExtractor.java:1084)
at org.schabi.newpipe.DownloaderImpl$1.onResponse(DownloaderImpl.java:342)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:519)
... 3 more
Edit: for anyone having the same issue, post the error log and mention if you have logged in.
Edit2: solution: Log out -> force close(If you not familiar with that, restart the phone) -> restart, make sure you are not logging in when you open the app
Exception
Crash log