my website was blocked

my website was blocked.
hxxp://www.tonkhristian.com.br/
I need to know why.
thanks

Please make that live link unclickable, thanks. :wink:

There was a backdoor in last 30 days: http://www.avgthreatlabs.com/website-safety-reports/domain/tonkhristian.com.br/
Blacklisted by Fortinet: https://www.virustotal.com/en/url/72f550b8110120d4aa7b4872a4d89e57c6c1c5c2205deb3dfc1dd83bed73002e/analysis/1393263083/
And there is suspicious javascript malware: http://zulu.zscaler.com/submission/show/62cff0abf5a12443a10f6b67849946c7-1393263135