Clothworks version is not licensed

i am using sketchup 2017 and i have just installed clothworks plugin and i am getting the error message saying that Note that your Clothworks version is not licensed because of that i am not getting some options like simple grid and all…what to do? and how do i get it licensed or is there any other way to do it

Clothworks is a payed extension and you have to purchase a license for using it.
More details about the licensing here

thanks