Arguments are of the wrong type

har denna kod i en include:

Set conn = Server.CreateObject("ADODB.Connection")
conn.open(conn_str)

dar conn_str e uppgifterna till mssql databasen...

jag far felmeddelande i denna kod:

function AddForm(FormName, Descriptions)
	
	Dim sql, bookmark
	sql = "tblForms"
	set rs = server.createobject("adodb.recordset")
	rs.cursorlocation = adUseClient
	rs.open sql, conn, adOpenStatic, adLockOptimistic
		rs.addNew
		rs("FormName") = FormName
		rs("Descriptions") = Descriptions	
		'rs("RoleID") = RoleID
		rs.update

		bookmark = rs.absoluteposition
		rs.requery
		rs.absoluteposition = bookmark

		AddForm = rs("FormID")
	rs.close
	set rs = nothing
end function

pa raden med:
rs.cursorlocation = adUseClient

och felmeddelandet lyder:
Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.

jag har kollat sa att jag oppnar ratt conn osv men det funkar fortfarande inte?