iOS document folder issues

iOS and Android iOS
1

Hi all, do any of you have document folder issues? Since the newest updated, I cannot access subfolders on my iPhone (iOS 13) and I get the following report every time I try to do so:

AVAudioFile(forReading: currentPlaylistURLs[index!])

[AVAudioFile.mm:134:AVAudioFileImpl: (ExtAudioFileOpenURL((CFURLRef)fileURL, &_extAudioFile)): error -54

Error Domain=com.apple.coreaudio.avfaudio Code=-54 “(null)” UserInfo={failed call=ExtAudioFileOpenURL((CFURLRef)fileURL, &_extAudioFile)}