plug in not installed

itried many times but my plugin is not getting installed. can you help me?

There are a few things that can cause that during setup.

Here is the "getting started"
link JIC you need it again.

Also I would like you to read THIS POST
Just saying it isn't installed without any other information doesn't give much to go on.

Take a little time to read some of the other posts in this section too as this topic has been dealt with a few times and maybe the answer you seek has already been dealt with or there may be a clue as to how to get you going.

If you are still stuck after all that then add whats missing in regards information back here.