There are what I believe to be some misspellings in your quote, making reading this even harder. But, my interpretation ( this is not legal advise) is that they are saying if you later decide you are mad at them and want to sue them you will have given up that option. Of course, this is out of context, and the agreement should be reviewed by an attorney prior to your signing. I am sorry, I don't know any attorneys in your area. Best of luck.