It looks like you are trying to edit existing framing by setting a parameter named “start x”
This won’t work.
The challenge you have is to match up records from the Excel spreadsheet with the elements (if that it what you are trying to do) For example, something needs to tell Dynamo that the record in row 2 matches elementID 438391
It is easier to create new geometry than modify existing- refer
@tmutarakan The problem is, just as Andrew stated, that you are trying to modify a parameter named “start.x”, which probably doesn’t exist. However, from what I gather you want to modify the curve of the framing (the geometry).
If you have a good reason for keeping the existing elements (if not I urge you to use Andrews suggestion), you can use the “Element.SetLocation” node. See example in image below.