my guess is that the problem is created by the upload folder path:
'UploadFolder' => "file:///Macintosh HD/Users/T_Laverdure/Sites/Good Samaritan Church/",
a) it should be a document relative path
b) the upload folder name should not contain sapces.
change the folder name from "Good Samaritan Church" to "GoodSamaritanChurch"
and change the upload folder setting to:
'UploadFolder' => "GoodSamaritanChurch",
if you still have a problem, add the following code to line 1 of the page to turn error reporting on: