HTC Touch Viva Cell Phone "unable open webpage" Questions

...unable to download or update anything on Play Store, watch videos on YouTube, Google chrome many times display the message "Webpage is not available", and all images do not open on Google Images, ...

unable to open any websites. Any help would be appreciated. Mobile: HTC Touch Viva Thanks vodafone live setting for windows based mobiles version 6:::: select "start" ---->>> select "settings" -------