Mobile01 景點書製作完成後，無法下載？？

請問前輩們：
為何Mobile01 景點書製作完成後，下載連結出現下列訊息而無法下載？！謝謝幫忙！！

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: C:\apache-tomcat-6.0.18\webapps\GPXI\WEB-INF\export\20130201\8344\mobile01-poi-1359560139\mobile01-poi-1359560139.gpi (系統找不到指定的路徑。)
com.garmin.gpxi.view.DownloadView.renderMergedOutputModel(DownloadView.java:63)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:252)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1173)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:901)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause

java.io.FileNotFoundException: C:\apache-tomcat-6.0.18\webapps\GPXI\WEB-INF\export\20130201\8344\mobile01-poi-1359560139\mobile01-poi-1359560139.gpi (系統找不到指定的路徑。)
java.io.FileInputStream.open(Native Method)
java.io.FileInputStream.<init>(FileInputStream.java:106)
java.io.FileInputStream.<init>(FileInputStream.java:66)
com.garmin.gpxi.view.DownloadView.renderMergedOutputModel(DownloadView.java:54)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:252)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1173)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:901)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.

Apache Tomcat/6.0.18