type Exception report
message Invalid section or file
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Invalid section or file com.redrobysoftware.eschool.servlet.CourseZipServlet.doGet(CourseZipServlet.java:847) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.68 (Ubuntu) logs.