Cannot access Assignment submission folder (ShareFolders)

I tried to access ”ShareFolders", but after repeatedly entering the password, the message "Your password is incorrect" or "User account does not have access to ShareFolders" appears.  And inaccessible.

Please check "ShareFolders" user name and password.

Example:

・windows
 aa00000@sic
 Same as Scomb password

・macOS
 aa00000
 Same as Scomb password

・Guide page
 Assignment submission folder(ShareFolders)