[vqadmin] My qmailadmin doesn't work ..

[Ely]

I have installed in my computer, Qmail,vpopmail and Qmailadmin.. I am using this configuration a long time with success . Sending and receiveing email.. But last week I can't get access in qmailadim.. I'd like to know how can I know the steps for make a troubleshoting in qmailadmi?   Thanks   Ely Alves