MacGourmet version 3.1 uses a new way to import your recipes, so any importers that you have installed, you'll want to uninstall. You can do this in two ways:

Disabling them in the Plug-in Manager

1. Open the Plug-in Manager from the Tools menu
2. Uncheck the "enabled" box next to any optional web site importers you've added. You will no longer need them.
3. Restart MacGourmet

Removing the plug-in files (preferred)

1. Open the Plug-in Manager from the Tools menu
2. Right-click on the "Optional Plug-ins" table and choose "Show Plug-ins in Finder"
3. Move or delete any of the importers you've added
4. Restart MacGourmet