Would you like to share it? There may be others with the same problem
Itunes has copy protection compatible with its products called DRM. In order to play Itunes media files on non-apple devices, you need to remove this DRM.
I just follow the instruction here.https://www.howtogeek.com/291612/how-to-remove-drm-from-itunes-movies-and-tv-shows/https://pastebin.com/eFFfcyh1
The download links on the two web pages don't work anymore but you can find all of the programs on google. Installing them, I came across a few minor problems but all the solutions can also be found on google.