If it is a "UnknownRecErr" error, then it means that the point(s) in that particular target that is throwing the error does not have those points in the database. This particular case may or may not be an issue depending on what you're doing. There are some cases where you want want to run some logic that applies to multiple equipment, but not all have the same points, which is fine. However, if they all should have the same points, then you need to make sure you add those points in DB Builder to those equips throwing the error to resolve this. Then once the points are added, the program will just work, give it a minute to refresh itself or resave it.