Ferry w./ 1k pax Aground in Stockholm

There are news reports that the Princess Anastasia has run aground in Stockholm carrying over 1000 passengers. There is a picture but little useful info in this article:

I’m struggling to make sense of their track. What happened here? Looks like they may have lost propulsion shortly after departing the Frihamnen terminal, but it’s hard to tell:

https://www.marinetraffic.com/en/ais/home/centerx:18.160/centery:59.339/zoom:14

She is back alongside at Frihamnen now. She was only aground for abt. an hour (1715 - 1810 hrs UTC):

Blackout said to be the cause of grounding.

Aha