Sum array excluding #N/A

Hi all,

I'm having issues getting an array to work that also excludes #N/A's.

Below is what I have attempted but neither have worked.
5:5 - Dates
6:6 - Numbers
D61 - Date of current month.

Attempt 1 - {=SUM(IF(AND(MONTH($5:$5)=MONTH(D$61),$6:$6<>#N/A),$6:$6))}
Attempt 2 - {=SUM(IF(IFERROR(MONTH(5:5)=MONTH(D$61),0),6:6))}

Thanks in advance for your help.

Try:

=SUM(IF(MONTH($5:$5)=MONTH(D$61),IF(ISNUMBER($6:$6),$6:$6)))