Unkown server message

Help me please , I had this program in my old PC and my last pulse was
around 2009/8 cant really remember , since then I bought a new computer
and I wanted to install it , so I did and when it requesting my account name + password , it give’s me this message Unkown server message

So please help me with this , I saw couple of topics here in the forum but
none of them really helped me .

Thanks .