Need your assistance please.

Running: Joomla! 2.5.4 Stable [ Ember ] 2-April-2012 14:00 GMT
PHP version: 5.2.17

Here is the trial calendar page: strosesalumni.org/newyork/index.php/get-involved/calendar

Here is the error:

Warning: Division by zero in /home/content/s/r/h/srh2admin/html/newyork/components/com_icagenda/helpers/icmodel.php on line 289

Warning: Invalid argument supplied for foreach() in /home/content/s/r/h/srh2admin/html/newyork/components/com_icagenda/helpers/icmodel.php on line 361

Fatal error: Call to a member function setTitle() on a non-object in /home/content/s/r/h/srh2admin/html/newyork/components/com_icagenda/views/list/tmpl/event.php on line 19