0.5.1 to 0.5.2 killed my installation

Hello,

I just made the update to 0.5.2 and now I see only this:

UsersManager.getTokenAuth is expecting a MD5-hashed password (32 chars long string). Please call the md5() function on the password before calling this method.

Backtrace:
#0 /www/htdocs/w0090330/_sd_p/plugins/Login/Auth.php(31): Piwik_UsersManager_API::getTokenAuth(‘root’, ‘’)
#1 /www/htdocs/w0090330/_sd_p/core/Access.php(131): Piwik_Login_Auth->authenticate()
#2 /www/htdocs/w0090330/_sd_p/core/FrontController.php(238): Piwik_Access->reloadAccess(Object(Piwik_Login_Auth))
#3 /www/htdocs/w0090330/_sd_p/index.php(103): Piwik_FrontController->init()
#4 {main}

I was hoping to get my year statistics back, now I’ve nothing. What to do next?

Okay, adding the salt to the superuser section did the trick.

The pages module still counts just visits for the last four weeks. How can I get the whole data back?