It is giving you an error in the Full version of Access? What does the error say? Which line is causing the exception? You can click OK at the time of the Run Time error to launch the debugger.
Perhaps you can leave off the last argument in the Send Object method. This argument is looking for a path to a template. The parameter is of type Variant. Passing it an empty string will change it from being an empty state and might cause the Method to look for a path.
Code:
DoCmd.SendObject acForm, "frmContactBrittani", "PDFFormat(*.pdf)", "", "", "", "Immediate Response", "", True