A store was not specified and a default was not provided

[compsciencewoma]

Hello anyone,

I have one big problem. Alfresco run on a virtual Linux-server and the webpage …serverhome:8080//alfresco run on firefox on my laptop with Windows XP. If I started the server it's run perfectly, but since few weeks is at the end a ERROR in alfresco.log (in text marked red), …serverhome:8080//alfresco work. What is it for an error? What is it dependent on? And how I can resolve this problem?
Please help, I don't know…

…
INFO  [org.alfresco.config.JndiPropertyPlaceholderConfigurer] Loading properties file from class path resource [alfresco/alfresco-shared.properties]
INFO  [org.alfresco.repo.management.subsystems.ChildApplicationContextFactory] Startup of 'Authentication' subsystem, ID: [Authentication, managed, alfrescoNtlm1] complete
ERROR [org.alfresco.fileserver] Failed to get local domain/workgroup name, using default of WORKGROUP
ERROR [org.alfresco.fileserver] (This may be due to firewall settings or incorrect <broadcast> setting)
INFO  [org.alfresco.repo.management.subsystems.ChildApplicationContextFactory] Startup of 'fileServers' subsystem, ID: [fileServers, default] complete
INFO  [org.alfresco.repo.management.subsystems.ChildApplicationContextFactory] Starting 'imap' subsystem, ID: [imap, default]
INFO  [org.alfresco.config.JndiPropertyPlaceholderConfigurer] Loading properties file from class path resource [alfresco/alfresco-shared.properties
…
INFO  [org.alfresco.web.scripts.AbstractRuntimeContainer] Initialised WebFramework Web Script Container (in 293.86826ms)
INFO  [org.alfresco.web.site.FrameworkHelper] Successfully Initialized Web Framework
INFO  [org.alfresco.web.site.FrameworkHelper] Successfully Initialized Web Framework
ERROR [org.alfresco.web.scripts.AbstractRuntime] Exception from executeScript - redirecting to status template error: 02300001 Unable to determine which store to operate against. A store was not specified and a default was not provided.
org.alfresco.web.scripts.WebScriptException: 02300001 Unable to determine which store to operate against. A store was not specified and a default was not provided.
        at org.alfresco.repo.web.scripts.bean.BaseRemoteStore.execute(BaseRemoteStore.java:209)
        at org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:372)
        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:327)
        at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:422)
        at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:439)
        at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:262)
        at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:306)
        at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:183)
        at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:122)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:619)

[compsciencewoma]

Have anybody an Idea?
It is too simple? Please help…