[求助]定义时增加一项就报错"溢出"

conn.asp

<!-- #include file="Upload.asp" -->
<%
Set Conn = Server.CreateObject("ADODB.connection")
DBPath = "Data/fileNameData.asp"
ConnStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath(DBPath)
Conn.Open ConnStr

<!--'定义文件夹
set Upload = new DoteyUpload
Upload.MaxTotalBytes = 50 *1024 *1024 '设置上传文件最大值
path = "UploadFiles" '设置上传目录
fileext=rar/jpg '定义允许文件类型
//-->
%>

只要增加红色那趟就出现"溢出"错误页,这是怎么回事?