Error changing logo

Hi everyone,

I installed jahia version 4 and changed logo image in home page. When I 
try to update new logo, an error occurred.

Does anybody knows what is happening?


Reguards,
Nuno Martins

49800163 [http-8080-Processor1] ERROR - Error
java.lang.IllegalStateException
    at 
org.apache.slide.store.BindingStore.getFirstMapping(BindingStore.java:461)
    at 
org.apache.slide.store.BindingStore.getXmlParentSet(BindingStore.java:439)
    at 
org.apache.slide.store.BindingStore.retrieveRevisionDescriptor(BindingStore.java:411)
    at org.apache.slide.content.ContentImpl.retrieve(ContentImpl.java:260)
    at org.apache.slide.content.ContentImpl.retrieve(ContentImpl.java:296)
    at 
org.jahia.services.webdav.DAVFileAccess.setFile(DAVFileAccess.java:134)
    at 
org.jahia.services.webdav.DAVFileAccess.<init>(DAVFileAccess.java:114)
    at 
org.jahia.services.webdav.JahiaWebdavBaseService.getDAVFileAccess(JahiaWebdavBaseService.java:56)
    at 
org.jahia.services.fields.ContentFileField.changeEntryState(ContentFileField.java:144)
    at 
org.jahia.services.fields.ContentField.setWorkflowState(ContentField.java:1461)
    at 
org.jahia.services.fields.JahiaFieldBaseService.setFieldsLanguageStates(JahiaFieldBaseService.java:1382)
    at 
org.jahia.services.pages.ContentPage.changeStagingStatus(ContentPage.java:3411)
    at 
org.jahia.engines.workflow.WorkflowEngine.applyModifications(WorkflowEngine.java:461)
    at 
org.jahia.engines.workflow.WorkflowEngine.handleActions(WorkflowEngine.java:292)
    at 
org.jahia.operations.OperationManager.handleOperations(OperationManager.java:311)
    at org.jahia.bin.JahiaAction.execute(JahiaAction.java:50)
    at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
    at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
    at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
    at org.jahia.bin.Jahia.process(Jahia.java:1539)
    at org.jahia.bin.Jahia.service(Jahia.java:854)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
    at 
org.jahia.bin.filters.ntlm.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:135)
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
    at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
    at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
    at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at 
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
    at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
    at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at 
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
    at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
    at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
    at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
    at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at 
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
    at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
    at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
    at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
    at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
    at java.lang.Thread.run(Thread.java:534)