Synopsis
Where you were supposed to supply a whole number (ie, integer) as the setting for NUMERIC FUZZ, you supplied either a non-numeric number, or one containing a fractional component (for example, 1.5). bad value is what you supplied.
Cause
You specified a variable name whose value is intended to be the setting, but that variable's value is not numeric, or contains a fractional component.
Cure
Make sure the variable's value contains only the digits 0 to 9.