this message indicates that one of the elements defined in your clickpath can not be found. You can have a look at the locators used to find the element in the clickpath settings.
If the problem persist, please go ahead an open a support ticket with additional details.
Kind regards, Philipp
As Philipp mentions here this message is seen when elements defined in your clickpath can not be found.
Things to check:
are the screenshots showing what you expected? If not, has the scenario changed? Does the same happen if you playback locally or manually walk through the steps in the browser. Maybe try re-recording the script if it has changed.
Has the page just not fully loaded? Try changing the wait strategy for the event