* 22:35:08  WARN <GLib-GObject> Attempt to add property GnomeProgram::sm-connect after class was initialised
* 22:35:08  WARN <GLib-GObject> Attempt to add property GnomeProgram::show-crash-dialog after class was initialised
* 22:35:08  WARN <GLib-GObject> Attempt to add property GnomeProgram::display after class was initialised
* 22:35:08  WARN <GLib-GObject> Attempt to add property GnomeProgram::default-icon after class was initialised
* 22:35:08  WARN <GdkPixbuf> Cannot open pixbuf loader module file '/Library/Gnucash-2.4/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache': No such file or directory

This likely means that your installation is broken.
Try running the command
  gdk-pixbuf-query-loaders > /Library/Gnucash-2.4/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
to make things work again for the time being.
* 22:35:08  CRIT <gnc.gui> [gnc_gnome_get_gdkpixbuf()] Could not load pixbuf: Couldn't recognize the image file format for file '/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnucash-icon-16x16.png'
* 22:35:08  WARN <gnc.gui> error loading image from [/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnucash-icon-16x16.png]
* 22:35:08  CRIT <gnc.gui> [gnc_gnome_get_gdkpixbuf()] Could not load pixbuf: Couldn't recognize the image file format for file '/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnucash-icon-32x32.png'
* 22:35:08  WARN <gnc.gui> error loading image from [/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnucash-icon-32x32.png]
* 22:35:08  CRIT <gnc.gui> [gnc_gnome_get_gdkpixbuf()] Could not load pixbuf: Couldn't recognize the image file format for file '/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnucash-icon-48x48.png'
* 22:35:08  WARN <gnc.gui> error loading image from [/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnucash-icon-48x48.png]
* 22:35:32  WARN <Gtk> Window0: missing action Window0Action
* 22:35:32  WARN <Gtk> Window1: missing action Window1Action
* 22:35:32  WARN <Gtk> Window2: missing action Window2Action
* 22:35:32  WARN <Gtk> Window3: missing action Window3Action
* 22:35:32  WARN <Gtk> Window4: missing action Window4Action
* 22:35:32  WARN <Gtk> Window5: missing action Window5Action
* 22:35:32  WARN <Gtk> Window6: missing action Window6Action
* 22:35:32  WARN <Gtk> Window7: missing action Window7Action
* 22:35:32  WARN <Gtk> Window8: missing action Window8Action
* 22:35:32  WARN <Gtk> Window9: missing action Window9Action
* 22:35:32  CRIT <gnc.gui> [gnc_gnome_get_gdkpixbuf()] Could not load pixbuf: Couldn't recognize the image file format for file '/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnc-account.png'
* 22:35:32  CRIT <gnc.gui> [gnc_gnome_get_gdkpixbuf()] Could not load pixbuf: Couldn't recognize the image file format for file '/Applications/Gnucash-2.4.14.app/Contents/Resources/share/gnucash/pixmaps/gnc-account-16.png'
