SOS! What is wrong with my google mail?-------SOS!

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Today when I tried to log in to my google mail adress, there is something wrong with it and I can't log in, it shows that "Page can't be displayed( I translated it into English because it's displayed in Chinese)". I tried this process with both IE and Firefox, but both of them doesn't work. Does anybody here has the same problem as mine? I indeed need your help because there will be an important email sent to my gmail address. SOS and thanks in advance!