Pottsgrove game has also been moved. Here's a list of all the changes.
https://www.easternpafootball.com/news/piaa-hs-football-playoff-schedule-changes-for-nov-9th-2018/
https://www.easternpafootball.com/news/piaa-hs-football-playoff-schedule-changes-for-nov-9th-2018/