sage50 accounting 2016 version

SOLVED

i have a 2-user sage 50 accounting 2016 version. 

usually, if i log in the user on a third laptop, one of the previous laptops log in stops working

i logged in on a third laptop, and it accepted my credentials (username, ID etc) but then when i double click the application to actually open, it does not open up. is this because sage50 2016 is discontinued? is there anything i can do?