Why 'Simple' example is not giving pdf report?

[LSG8]

Hi,

I am using windows. I installed tomcat 8.5. Then deployed print-servlet 3.9 war. There are some example print apps. I tried to print "Simple", but it didn't build any pdf report, gave some error instead. It shows file not found error but the file is there at the location. "Error while processing request: java.io.FileNotFoundException: C:\Program%20Files\Apache%20Software%20Foundation\Tomcat%208.5\webapps\print-servlet-3.9.0\print-apps\simple\countries.geojson (The system cannot find the path specified)"

I also installed geoserver and created a new app where I gave wms of geoserver as base url. If I run this app, a pdf report is getting generated but no map is showing there. This test app is attached herewith.

I am very new to this. Could you please help? test_app.zip