Power query - error null values in date field

Lhansen435 

Thank you. [Termination] is null. To correct

let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(
        Source,
        {
              {"Birth Date", type date}
            , {"Hire Date", type date}
            , {"Entry Date", type date}
            , {"Secondary Entry", type date}
            , {"Tertiary Entry", type date}
        }),
    #"Added Custom" = Table.AddColumn(
        #"Changed Type",
        "Custom",
        each
            if [Compensation] > 0 and [Compensation] <> null
            then
                if List.Contains({"A","B","C","D","H","M","N","R"},[Primary Status])
                then
                    if [Entry Date]> #date(2023,03,31)
                    then "2-Current Year Elig"
                    else "3-Prior Year Elig"
                else
                    if List.Contains({"S","Y"},[Primary Status])
                    then "1-Min Age Svc"
                    else
                        if List.Contains({"Z","Q"},[Primary Status])
                        then "6-Special Status"
                        else 0
            else
                if [Termination]> #date(2023,03,31) and [Termination] <> null
                then "4-current year term with 0 comp"
                else "5-Prior Year Term")
in
    #"Added Custom"

Please check attached.