According to TMZ, who has seen the court documents, Paul hit Travis with a $20 million lawsuit over the song "NO BYSTANDERS." On that song, which is off Astroworld, Travis chants "Fuck the club up" on the chorus. The cadence, and the verbiage of the song, is almost identical to the cadence and verbiage Three 6 Mafia used on their classic single "Tear Da Club Up."
In fact, in the documents, Paul makes note of Travis rapping "tear the club up" at the 2019 Grammys. Not only does DJ Paul want profits from the song, but he wants the track, which also features Juice WRLD and Sheck Wes, to be pulled from the album.
From G Herbo to Cardi B, Three 6 Mafia has been one of the most sampled rap acts. Listening to the song, it's pretty evident that Travis was trying to sample the Three 6 Mafia song. It seems like someone forgot to clear the sample?