@wpyogi, thanks for your responded, I just try and but it still not work..I hope it will be solve as soon as possible, I ask a future helps from you..
After studying your comments it seems that the problems might be because of not disabling plugins before I did update.. I did not make a back-up to restore as I have no a deep knowledge in website. My website is not published yet and going to be launch in September..If there is any information relating this problem please inform me as soon as possible so that I can fix the problems and get a better job.. Thanks and I’ll be waiting your future support..