500 Servlet Exception

javax.servlet.ServletException: Class `Lsummary.htm' was not found in classpath.
Classes normally belong in /WEB-INF/classes.
	at com.caucho.server.http.Application.instantiateServlet(Application.java:3193)
	at com.caucho.server.http.Application.createServlet(Application.java:3101)
	at com.caucho.server.http.Application.loadServlet(Application.java:3062)
	at com.caucho.server.http.QServletConfig.loadServlet(QServletConfig.java:435)
	at com.caucho.server.http.Application.getFilterChainServlet(Application.java:2806)
	at com.caucho.server.http.Application.buildFilterChain(Application.java:2762)
	at com.caucho.server.http.Invocation.service(Invocation.java:313)
	at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
	at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:346)
	at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:274)
	at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
	at java.lang.Thread.run(Thread.java:534)