This means the error is in your code. Try to debug the same and run the program in foreground i hope this could be the error where "Screen field KNA1-TELFX does not exist" .This is my assumption .
Better to debug the same.
This means the error is in your code. Try to debug the same and run the program in foreground i hope this could be the error where "Screen field KNA1-TELFX does not exist" .This is my assumption .
Better to debug the same.