Robot Timed Out

I am trying to run a robot that runs for most of the day, but after a few hours the robot times out. Is there a way to stop this from occuring?

If you can find the activity on which it times out, you can set the ContinueOnError property to True

Where is this propterty?

It is on an individual activity, rather than the entire flowchart. There is most likely an activity within that flow that fails.