RS: download file deleted by someone else

2019-01-29 09:21:39,544 [ajp-nio2-8008-exec-10] ERROR OLATRuntimeException - OLAT::ERROR ^%^ N8-E37 ^%^ org.olat.core.logging 

https://olat.xyz.ch/auth/RepositoryEntry/384860344/CourseNode/94627832662132/path%3D~~Karzinome/0

Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko

**RedScreen**
<dispatchinfo>
	<componentinfo>
		<compname>foldercomp</compname>
		<compclass>org.olat.core.commons.modules.bc.components.FolderComponent</compclass>
		<extendedinfo>n/a</extendedinfo>
		<event>
			<class&gt;org.olat.core.gui.control.Event</class&gt;
			<command>serv</command>
			<tostring>com:serv,org.olat.core.gui.control.Event@35d035</tostring>
		</event>
	</componentinfo>
	<controllerinfo>
		<controllername>org.olat.core.commons.modules.bc.FolderRunController</controllername>
		<controllername>org.olat.course.nodes.bc.BCCourseNodeRunController</controllername>
		<controllername>org.olat.course.run.RunMainController</controllername>
		<controllername>org.olat.course.run.CourseRuntimeController</controllername>
		<controllername>org.olat.core.commons.fullWebApp.BaseFullWebappController</controllername>
	</controllerinfo>
</dispatchinfo>

>>> stack of 1.cause::org.olat.core.logging.OLATRuntimeException: null
-> at org.olat.core.gui.exception.ExceptionWindowController.<init>(ExceptionWindowController.java:116)
   at org.olat.core.gui.exception.MsgFactory.createMessageChiefController(MsgFactory.java:57)
   at org.olat.core.gui.exception.MsgFactory.createMessageChiefController(MsgFactory.java:46)
   at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:209)
   at org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:294)
   at org.olat.core.servlets.OpenOLATServlet.doGet(OpenOLATServlet.java:222)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
   at org.olat.core.servlets.OpenOLATServlet.service(OpenOLATServlet.java:178)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>>> stack of 2.cause::java.lang.NullPointerException: null
-> at org.olat.core.commons.modules.bc.commands.CmdServeResource.execute(CmdServeResource.java:83)
   at org.olat.core.commons.modules.bc.FolderRunController.event(FolderRunController.java:455)
   at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:206)
   at org.olat.core.gui.components.AbstractComponent$1.run(AbstractComponent.java:240)
   at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)
   at org.olat.core.gui.components.AbstractComponent.fireEvent(AbstractComponent.java:238)
   at org.olat.core.commons.modules.bc.components.FolderComponent.doDispatchRequest(FolderComponent.java:153)
   at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
   at org.olat.core.gui.components.Window.doDispatchToComponent(Window.java:1193)
   at org.olat.core.gui.components.Window.dispatchRequest(Window.java:682)
   at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:282)