I'm no linguist, but four seems like it's repeating?
The league does list past infractions, as they did with Rebecca Leslie's recent fine, the second of her career, Maggie Flaherty's fine, the second disciplinary action of her career, and Britta Curl-Salemme's fine, the fourth supplemental disciplinary action she's faced.
But none of these players were repeat offenders in the PWHL's eyes.