I searched this problem on google i saw it could help some others...
I have also one update in the issue.
"
http://infinitecointalk.org/index.php/topic,315.75.htmlif you use windows
1-download this :https://mega.co.nz/#!wERQESKT!VjDLhD51Tscp0YGUuLLGHXCu29dtxDuaabk0F7csQgI
2-go to c:\user\yourname\appdata\Roaming\infinitecoin
3-copy wallet.dat in a safe folder (make one or two copy it's your backup be sure to make this or you loose all your coins)
4-remove all file in c:\user\yourname\appdata\Roaming\infinitecoin
5-unzip the downloaded file , and copy all file from the unziped folder to c:\user\yourname\appdata\Roaming\infinitecoin
6-copy your wallet.dat to c:\user\yourname\appdata\Roaming\infinitecoin
7-you can start the QT now it will take some minute to get the lastest block and you will be sync"