xlookup add in doesn't work properly

Hi
I have add in ExcelDna.xfunction version 5. only very basic function is working like use it as vlookup, most the function doesn't work
for example if my lookup value is single cell, it's working. if my lookup value is multi cells, it doesn't work
Also if i want to use more complicated xlookup function like search the next smaller value, it doesn't work via single cell or multi cells

I use microsoft 2019, I install for 64

please advise it

Thanks
Vivien