Not sure which one of us you are responding to, but...
If you only want to sum a single column it's much easier...
In cell N3 enter =SUMIFS($D$3:$D$14,$A$3:$A$14,$L3,$B$3:$B$14,$M3)
In cell O3 enter =SUMIFS($D$3:$D$14,$A$3:$A$14,$L3,$B$3:$B$14,$M3,$C$3:$C$14,$O$2)
Replace the first range with whichever column you want to sum.
These are not now array formulae, so you do not need the curly braces.
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