Reality TV star Kim Kardashian and boxing legend Floyd Mayweather Jr. are facing a lawsuit alleging the celebrities misled investors in their promotion of a cryptocurrency token.

The lawsuit, filed January 7 in Los Angeles federal court, claims the celebrities touted tokens sold by Ethereum Max, or EMAX, in order to boost its price and make themselves a profit “at the expense of their followers and investors.”

“The company’s executives, collaborating with several celebrity promoters … made false or misleading statements about Ethereum Max through social media advertisements and other promotional activities,” the lawsuit stated.

According to the lawsuit, Kardashian promoted Ethereum Max in a June 2021 post on Instagram, when she had 250 million followers.

“Are you guys into crypto?” she wrote in the post, followed by the disclaimer “this is not financial advice”, but that she wanted to share “what my friends just told me” about the Ethereum Max tokens.

She included the #AD hashtag to show the post was a paid advertisement, the lawsuit said.

Mayweather promoted Ethereum Max on his boxing trunks during a widely viewed fight with YouTube star Logan Paul in June, among other times.

Representatives for Kardashian and Mayweather did not immediately respond to requests for comment.

Ethereum Max, the company, was also named in the lawsuit.

“The deceptive narrative associated with the recent allegations is riddled with misinformation about the Ethereum Max project,” Ethereum Max said in a statement. “We dispute the allegations and look forward to the truth coming out.”

The lawsuit, filed by a New York resident who bought EMAX tokens and lost money, is proposed as a class-action suit for anyone who bought EMAX tokens from mid-May to late June 2021.

The case seeks restitution and disgorgement of profits by the defendants.