Error when updating scalix to version 11.4.6
After an apparently successful update I was not able to use caldav/ical or http browse to calendars with the resulting error
HTTP Status 500 - The server encountered an internal error (
........................
java.sql.SQLException: Connections could not be acquired from the underlying database!
The problem turned out to be the postres database had not successfully restarted after the update . Applying
service scalix-postgres restart
fixed the problem.