A couple of alternatives:
Note: First take the dot away from Jan. and Feb. in C33 and D33...
In Summary!C34:
=SUMPRODUCT(--(Active!$D$4:$D$200=$B34),--(TEXT(Active!$C$4:$C$200,"mmm")=C$33))+SUMPRODUCT(--(Cold!$D$4:$D$200=$B34),--(TEXT(Cold!$C$4:$C$200,"mmm")=C$33))+SUMPRODUCT(--(Wins!$D$4:$D$200=$B34),--(TEXT(Wins!$C$4:$C$200,"mmm")=C$33))+SUMPRODUCT(--(Sold!$D$4:$D$200=$B34),--(TEXT(Sold!$C$4:$C$200,"mmm")=C$33))+SUMPRODUCT(--(Lost!$D$4:$D$200=$B34),--(TEXT(Lost!$C$4:$C$200,"mmm")=C$33))+SUMPRODUCT(--(Dead!$D$4:$D$200=$B34),--(TEXT(Dead!$C$4:$C$200,"mmm")=C$33))
copied down the table and across the columns
A shorter version uses a free Addin function, downloaded from here: Morefunc.xll
=SUMPRODUCT(--(THREED(Active:Dead!$D$4:$D$200)=$B34),--(TEXT(THREED(Active:Dead!$C$4:$C$200),"mmm")=C$33))
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