Countif: Not counting FALSE results.

[countryfan_nt]

Hello friends, hope all is well!

Really appreciate your support please

I have a range K9:K150

I placed the following formula:
=IF(AND(COUNTA(A10:E10)>0,C10=""),"FALSE",IF(C10="","",IF(ISERROR(VLOOKUP(C10,Database!$A$2:$A$24,1,FALSE)=FALSE),FALSE,TRUE)))

Now I wish to count the number of FALSE.

I keep getting 0. Please help me edit the formula:
=COUNTIF(M9:M1500,FALSE)

Thank you very much in advance

 

[Fluff]

Remove the quotes from around the word FALSE in the col M formula