C.1.39. Error 43 - Routine not found.
A function has been invoked within an expression or a subroutine has been invoked by a CALL, but it cannot be found. Possible reasons:
The specified label is not in the program
It is not the name of a built-in function
The language processor could not locate it externally
Check if you mistyped the name.
If you did not try to call a routine, you might have put a symbol or string adjacent to a "(" when you meant it to be separated by a blank or another operator. The language processor then treats it as a function call. For example, write the string 3(4+5) as 3*(4+5).
