There was some sort of an error. After a day I was able to surf last night just fine.
In today's admin email she said that things were fixed and that if we couldn't surf then to clear cache and something else.
I still can't get in, but I don't really know how to clear my cache. And, if I do so, will my passwords that are auto saved on sites then not be there anymore?
I have Windows 10 and use the Chrome browser.