@sudhansu,well all apps are allowed in my phone,i have already changed my setting is not signed only apps,mine is to allow all but still the error is coming.
Opera Mini worlds most popular mobile browser now available to BlackBerry smartphones users via BlackBerry App World.
BlackBerry users can go to App World and download Opera Mini.
However Blackberry phone users can also download it manually by visiting m.opera.com, With opera mini Blackberry users will able to save much of data with their current data plan.
Opera Mini’s special zoom functionality will allow users easy reading and interaction with content on websites. You might also find great use of favourite hot keys that makes page-up and page-down viewing and speed much faster.
BlackBerry App World is available in more than 100 countries.