create a new iCalendar instance in the calendar/:name end point

server.js

@@ -138,6 +138,9 @@ app.get('/calendar/:name', async (req, res) => {
                 // Filter out any failed requests
                 const validResults = results.filter((result) => result !== null);
 
+                // Create a new iCalendar instance
+                const calendar = icalGenerator({ name: calendarName });
+
                 // Parse calendar data
                 const mergedCal = [];
                 validResults.forEach((result) => {