Soumitra,
It's strange.
It should have nothing to do with CuteChat.
Can you open the communityserver.config file and make sure you have the following code?
<Core
defaultLanguage="en-US"
disableEmail="false"
disableIndexing="false"
disableThreading="false"
cacheFactor="5"
smtpServerConnectionLimit="-1"
enableLatestVersionCheck="true"
systemType = "Self"
backwardsCompatiblePasswords = "false"
textEditorType = "Telligent.FreeTextBoxWraper.FTB, Telligent.FreeTextBoxWraper"
ssl = "Ignore"
defaultRoles = "Everyone;Registered Users"
wwwStatus = "Remove"
enableVirtualization = "false"
enableProductListing = "true"
enableUsersOnline = "true"
announcementRssUrl="
http://communityserver.org/blogs/announcements/rss.aspx"
>
Keep me posted
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