The lawsuit claims that the 31-year-old star has not paid the USD 250,000 balance left out of the total USD 600,000, at which his record label Young Money had bought the website, reported TMZ.
If Wayne's Young Money didn't make the payments on time, the name youngmoney.Com would be forfeited and it would go back to the company that originally owned the website.
Wayne's label could not be reached for comment.