"I know who you are, Mr Potter, but even you must understand that it's against school covenant for parents or professors to enter a house quarters without express permission…."
-- Craig Bowker Jr (CC3.15)
McGonagall goes to search the school, but Ginny asks Harry how heated his discussion with Albus had become (CC3.15).
Later the same day as previous event, likely October 2020
This event takes place in the Repaired timeline, as described in the essay "Albus Potter and the lesson in Quantum Mechanics" by Nick Moline.
Ginny's anger and suspicion about what her husband Harry has said to their son Albus comes bleakly through:
"I can forgive you for one mistake Harry, maybe even two, but the more mistakes you make, the harder to forgive you it becomes." (CC3.15).
It is also interesting that Craig says it is "against school covenant" for teachers or other adults to enter dormitories. The only other time we know of that a non-Head of House is even inside a Common Room is when the Carrow siblings are trying to catch Harry Potter in Ravenclaw (DH29).
From the Web
Pottermore: Harry Potter and the Cursed Child
The theatre production opened in the West End of London at the Palace Theatre on 30 July 2016, with Jamie Parker in the role of Harry Potter, Poppy Miller as Ginny Weasley, Jeremy Ang Jones as Craig Bowker Jr and Sandy McDade as Minerva McGonagall: Harry Potter and the Cursed Child, Parts One and Two