So I have the gallery before and I Want to sort Ascending/descending by the Employees Name (which is the Author column in SharePoint) but when i press the sort button, this is what happens:

Also for the search, i want to be able to type persons name in and it filters for them but that also doesn't work.
This is the formula:
SortByColumns(Filter([@'Compliance Team Leave Requests'],StartsWith('Title',TextSearchBox1.Text)), "Title", If(SortDescending1, Descending, Ascending))
Any ideas?
