關於「Err 20」標籤，搜尋引擎有相關的訊息討論：

Troubleshoot YouTube error messages - Android - Google Help“No Connection.” "An unexpected error has occurred. Please try again later." "400 Network Error." Issues on Smart TVs, ...System Error Codes (0-499) (WinError.h) - Win32 apps2021年1月6日 · The media is write protected. ERR