I got a Mac, all of the sudden yesterday I had an error message, so I now cannot log in

[alezz Luik]

Hi every  one ,  since yesterday I am not able  to  log in  I got an Mac and I had gotten an error message since yesterday when ever I try to log in, I tough it was  a matter of actualization  the  software, but  it still doesn't allow me  to get in I had thrown  to the  basked  all the viewers I got  and  downloaded from the official page and  I am still getting the same  error  message 

Is  this a problem that is particular of me or  are there many others  whit the same problem??

[valerie Inshan]

alezz, it's impossible to help without knowing exactly what the error message says. Please edit your post using "options" > "edit" at the upper right corner of your question to add text, or click "Permalink" under my reply to post a comment. Thank you.