Why I encontered this error PathTooLongException?

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System.IO.PathTooLongException: The path ‘/backups/Music/JPOP/東山奈央/EP’ is too long, or a component of the specified path is too long.
at System.IO.Enumeration.FileSystemEnumerator1.MoveNext() at System.Collections.Generic.List1..ctor(IEnumerable`1 collection)
at Duplicati.Library.Utility.Utility.EnumerateFileSystemEntries(String rootpath, EnumerationFilterDelegate callback, FileSystemInteraction folderList, FileSystemInteraction fileList, ExtractFileAttributes attributeReader, ReportAccessError errorCallback)+MoveNext()

The application runs in docker. The linux core is GNU/Linux 5.19.17

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Hi @Xuanhua_Lin, welcome to the forum :waving_hand:

What version of Duplicati is this?
Is the path you show the actual path or was it edited (I mean is it a really long path)?