The Massachusetts Juvenile Court buildings are still largely closed to the public due to COVID-19. They are taking cases by email and hearing cases both by telephone and videoconferences.
Here is a link to Court system response to the coronavirus pandemic:
Court system response to COVID-19.
Included is the Trial Court Help Line, where you can "call to ask general questions about their civil and criminal cases and [get] help ... navigat[ing] the court system."
The Juvenile Court COVID-19 FAQ's and Standing Orders are here.