I think the problem you are facing is your data type
Try using the unary operators
=SUMPRODUCT(--(F4:F35=B82),--(G4:G35=F98),J4:J35)
This forces TRUE, FALSE to 1, 0 then the formula can multiply the sums.

If you use this form of the formula ...
=SUMPRODUCT((F4:F35=B82)*(G4:G35=F98)*(J4:J35))
TRUE and FALSE are automatically calculated (forced) as 1, 0