The "series of that name," it says. I'm guessing they filled the role with rising stars. Her imdb credit doesn't mention it., and it doesn't mentin the Go-Getter series. If you check George O'Hara's entry, you see a string of films in 1925 that match up with hers; the series all had titles that parodied popular movies of the day.

This seems to be something of an overreaction:

In 1926, Vaughn became engaged to actor and leading man Grant Withers. After announcing their engagement in October 1929, Vaughn traveled to New York to film some talking sequences for a movie she was filming in Hollywood. Withers broke off the engagement after he discovered Vaughn went out with friends to nightclubs in New York.

More to it than that, perhaps. Later, after the roles stopped coming:

In March 1949 Vaughn was jailed on an intoxication violation in Pasadena. She chose incarceration instead of paying a $25 fine. Her jail term was twelve and a half days. A previous drunken charge, then pending, would have added an additional four months to her sentence.

It had been 14 years since she'd had a role.