ORA-33480
(FCFINI04) An error occurred while filling in the NA values in the input data.
Cause
A mathematical error occurred while FORECAST was attempting to fill in NA values in the input data. This may have been caused by an attempt to raise a number to a negative exponent or to take the square root of a negative number.
Action
Set the DIVIDEBYZERO and ROOTOFNEGATIVE options to TRUE and reexecute the FORECAST.