ERRORE APPLICATIVO

javax.el.ELException: Error reading [eventBytesImage] on type [com.erdheim.prenotazioniquartirolo.Strutture.Evento]
	at javax.el.BeanELResolver.getValue(BeanELResolver.java:98)
	at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:125)
	at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
	at org.apache.el.parser.AstFunction.getValue(AstFunction.java:189)
	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:190)
	at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:701)
	at org.apache.jsp.Principale.Prenotazione_jsp._jspx_meth_li_005fConnection_005f0(Prenotazione_jsp.java:346)
	at org.apache.jsp.Principale.Prenotazione_jsp._jspService(Prenotazione_jsp.java:207)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:750)
Caused by: com.dropbox.core.v2.files.DownloadErrorException: Exception in 2/files/download: {".tag":"path","path":"not_found"}
	at com.dropbox.core.v2.files.DbxUserFilesRequests.download(DbxUserFilesRequests.java:1275)
	at com.dropbox.core.v2.files.DownloadBuilder.start(DownloadBuilder.java:72)
	at com.dropbox.core.v2.DbxDownloadStyleBuilder.download(DbxDownloadStyleBuilder.java:165)
	at com.erdheim.library.dropbox.DropboxFile.getBytes(DropboxFile.java:73)
	at com.erdheim.prenotazioniquartirolo.Strutture.Evento.getEventBytesImage(Evento.java:37)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at javax.el.BeanELResolver.getValue(BeanELResolver.java:94)
	... 34 more