Calling Function on edit - success

Calling Function on edit - success

I am getting the following msg when calling a function. Can the error be improved to show the line number or the variable that has the problem? This function has over 400 lines including comments.

Error occured while executing on edit - success script.
on invoking a function Refresh_Single_Family_Summary
Unable to update variable
Error occured.


Herb Wexler