when I open music/video/picture,error window shows!

It says: Problem accessing a system resource Potentially, macOS blocks access to your disc. Please open "System Preferences" -> "Security & Privacy" and allow VLC to access your external media in "Files and Folders" section.

always I had give it allow(all files write and read),and delete,restart,but useless,every time it notices me error now,I can play music,but cant delete music files,the error window always here

macos catalina 10.15.5 19F83c beta forgive my wake English,please work it,thank you