Failed to activate rhino 6

i have problems with activating rhino 6 and every time i try these messages and pop ups appear to me, what should i do??

Hello - which of the options in the first dialog do you use?


i use log in, but i dont have a license key
by the way, i already have installed rhino 5 and activated it

You do not own a V6 license.
I see you did get a V6 eval license but it expired a month ago.
You will need to purchase an upgrade to run Rhino V6.