I can´t open grasshopper mac 5.4.1

I can´t open GRASSHOPPER for Mac, I just got the newest version of rhino 5.4.1. and I cant even copy an paste, I´m just a student and have a test version the program (I downloaded the 5.4.1 version) but we didn´t use grasshopper back a view days.
Some help would be great since it´s impossible for me to do anything at university right now :frowning:

Grasshopper will not run if your evaluation period has expired.