Help with SumIfs - Trying to create a sickness tracker that can track how many days of company sick pay someone has left, in a rolling year

I'm trying to create a spreadsheet than can track the amount of sick pay people have left in a rolling year, i'm having difficulty with with getting it to track properly however.

I have two sheets, a Leave sheet, that you enter in the date the person started sickness, and the date the sickness ended.

Column C -Name, Column D - Date from, Column E - Date to, Column F - Total day (=DAYS(E2,D2)), Column G - Work Days (SUM((F2/7)*5))

The second sheet is the employees sheet, that has the following columns

=if(A18<>"",sumifs(Leave!G:G,Leave!D:D,">="&$F$2,Leave!D:D,"<="&$G$2,Leave!D:D,"<=" &now(), Leave!C:C,A18, Leave!B:B,"Yes"),"")

Column A is employee nameF2 has this formula - =DATE(YEAR(G2) - 1, MONTH(G2), DAY(G2)) to work out the date a year agoG2 is just =Today()

I've taken this from another spreadsheet we used, that tracked the same thing, but for employees with their sickness in hours, so the Leave sheet was filled out differently.

Any help would be appreciated.

Regards,