Dear Customers,OpenSubtitles has enabled the login and password in order to use their service. Your Kodi will prompt the below error if you access to OpenSubtitles addon :

Please follow the below steps to continue access to OpenSubtitles :
1). Goto
http://www.opensubtitles.org/, register new account for OpenSubtitles.
2). Try login to above website once you successfully register with OpenSubtitles. Until you manage to login then only proceed to step #3.
3). Start your Kodi, goto System -> My Addon -> Subtitles -> OpenSubtitles.
4). Click "Configure" as per below screen.

5). Enter your login and password as per new account registered in step #1.

P/S: if you already have OpenSubtitles account use for ShowBox, the login and password could be shared for both Showbox and Kodi.
6). If you manage to login successfully, you should see the subtitle provide by OpenSubtitles.