I tried using the [[ https://we.phorge.it/book/phorge/article/calendar_imports/ | Phorge/Phabricator Calendar import feature related to Importing .ics URIs]].
After importing specific events, for example from Google Calendar (bleah), it can happen that the Calendar's homepage becomes broken. This was the exception error shown to video:
```
Call to a member function getEventsBetween() on null
```
This NULL pointer is thrown since this method can return NULL and it needs proper checks when used:
```
PhabricatorCalendarEventQuery#newRecurrenceSet()
```