Welcome to Nokia Support Discussions! Here you can share advice and tips with thousands of other Nokia users around the world in English. Many Nokia employees also follow and participate in the discussions, see our guidelines for more information. Everyone can search and read the discussions, but to post your own question or reply to others, simply sign in with your Nokia account. If this is your first time here, you can choose an alias to represent you. And if you don't have a Nokia account yet, please register.
For Ovi Store, goto http://store.ovi.com in your web browser. As for Communities and Chat, these are part of the phone firmware, so if you are having problems, you can try updating your phone's firmware via Nokia Suite or via the device itself. If that doesn't work, then you can try re-installing your current firmware. Failing that, try Restorign your phone to factory settings.
If that fails, then you will need to take your phone to your local Nokia Care point for them to inspect: http://nokia.com/support