Hi
you are VIP:
https://www.opensubtitles.org/en/profile/iduser-4554497
thanks for support. If you are VIP and you configure addon it is working. But please make these steps:
1) login into
www.opensubtitles.org so you verify your credentials are ok
2) in kodi, opensubtitles.org addons configuration insert your username and password from step 1)
3) enjoy subtitles
often happens, users doesnt type correct password, so triple check your password are same.