SUMPRODUCT with 2 criteria from date and specific text

Hi All,
I have a worksheet with SUMPRODUCT to get total of working days & it is working fine: =SUMPRODUCT(--(TEXT($C$4:$C$35,"MMM")=$N4)*($E$3:$L$3=O$3)*$E$4:$L$35)
Table 1: Data Source. Table 2: Data prep

With the additions to the above, I wish to get the SUMPRODUCT working to this current & with specific text "MC". I have tried to add another arguments to the formula but returns with #VALUE!.

Please find attachment.
Any help is greatly appreciated

Thank-You very much