[What means this message]

login failure

The system is going offline. your account is not available for access to 9/17/2011 13:33:58, US Pacific time (GMT-08).

[I received this response from LL what I should do]

I am sorry to hear that you are having issues with logging into your account.

Please see email reply to case # 01174511
Closing Additional Cases

Thank you for contacting Linden Lab Support

Sincerely
SuzanneI Scout

[I found out I was banned unfairly by accesses sl by a machine lan house, ip ban]

I honestly don't understand it the case that I sent "Case: 01211765"

I reported that I was unfairly banned because I accessed the second life in hostname of lan house, I discovered also that this ban was unfair because other people committed abuse on that machine, people who committed abuse was banned and I also was banned by accesses a second life people who committed abuse machine in the world second life, please if you need information but warns meI'm very sad.