Problem with removing Automator tasks started by iCal

I have deleted the iCal events. I also happened to remove the Automator apps from the Workflows folder.
And now I get an error message all the time when the removed iCal tasks are due, that iCal cannot find the App. But i Don't see any events inCal, and still it seems to want to start the Apps.

Thankful for all tips!

/groundliner