Raised exception while starting the application. Fix the error and restart.

Message
java.nio.file.FileAlreadyExistsException: /mnt/disks/geonetwork-data/data/upload
Handler
org.fao.geonet.Geonetwork
Exception
java.lang.RuntimeException: java.nio.file.FileAlreadyExistsException: /mnt/disks/geonetwork-data/data/upload
Stack
java.lang.RuntimeException: java.nio.file.FileAlreadyExistsException: /mnt/disks/geonetwork-data/data/upload
	at org.fao.geonet.kernel.GeonetworkDataDirectory.setDir(GeonetworkDataDirectory.java:490)
	at org.fao.geonet.kernel.GeonetworkDataDirectory.setDataDirectory(GeonetworkDataDirectory.java:312)
	at org.fao.geonet.kernel.GeonetworkDataDirectory.init(GeonetworkDataDirectory.java:121)
	at org.fao.geonet.Geonetwork.start(Geonetwork.java:177)
	at jeeves.server.JeevesEngine.initAppHandler(JeevesEngine.java:447)
	at jeeves.server.JeevesEngine.init(JeevesEngine.java:190)
	at jeeves.server.sources.http.JeevesServlet.init(JeevesServlet.java:80)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1144)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:985)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4887)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5201)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:614)
	at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1823)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.nio.file.FileAlreadyExistsException: /mnt/disks/geonetwork-data/data/upload
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:88)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
	at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384)
	at java.nio.file.Files.createDirectory(Files.java:674)
	at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781)
	at java.nio.file.Files.createDirectories(Files.java:727)
	at org.fao.geonet.kernel.GeonetworkDataDirectory.setDir(GeonetworkDataDirectory.java:488)
	... 23 more