Important Rule: Don't delete or rename any of the fields that are shipped with the basic Element Card.
The "Debug" button's script needs to find a background field called "Data". That is the name of the large "Data" field on the unmodified Element Card. If you must delete or rename the "Data" field then, modify the "Debug" button's script and things will be OK.
Don't change the "Delete" button's name. It is necessary for the recursive process that "Delete" does with its Child Cards. You can change its shape, properties, or position, but don't change its name!
The other buttons can can be moved and resized, and can have any name you like, such as "Make New Job" instead of "Create Peer" or "Create Child".
Don't change the scripts unless you know what you are doing.