GeoServer workspace list

Hi,
I've installed Cartaro + OpenGeo on Windows 7 64-bit machine. I'm able to load data from "cartaro" workspace but an error occurs when I click on Structure>GeoServer>Settings:

ERROR: Failed to get list of workspaces from GeoServer. See the log for details.

I've layers also in other workspaces: is it possible to load them although they are in different workspaces, not in "cartaro"?
And the GeoServer log (the last part of the file) is the following:

2014-03-31 16:11:43,204 DEBUG [wms.map] - Writing png image ...
2014-03-31 16:11:43,204 DEBUG [wms.map] - Writing png image ...
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Encoded input image for png writer
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Getting a writer
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Encoded input image for png writer
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Using ImageIO Writer with SPI: com.sun.media.imageioimpl.plugins.png.CLibPNGImageWriterSpi
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Setting write parameters for this writer
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Getting a writer
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Writer is native
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Using ImageIO Writer with SPI: com.sun.media.imageioimpl.plugins.png.CLibPNGImageWriterSpi
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Setting write parameters for this writer
2014-03-31 16:11:43,204 DEBUG [geotools.image] - About to write png image
2014-03-31 16:11:43,204 DEBUG [geotools.image] - Writer is native
2014-03-31 16:11:43,204 DEBUG [geotools.image] - About to write png image
2014-03-31 16:11:43,208 DEBUG [wms.map] - Writing png image ... done!
2014-03-31 16:11:43,208 DEBUG [wms.map] - Writing png image ... done!
2014-03-31 16:11:43,208 DEBUG [geoserver.filters] - Not compressing output for mimetype: image/png
2014-03-31 16:11:43,208 DEBUG [geoserver.filters] - Not compressing output for mimetype: image/png
2014-03-31 16:11:43,208 DEBUG [filter.GeoServerSecurityContextPersistenceFilter$1] - SecurityContextHolder now cleared, as request processing completed
2014-03-31 16:11:43,208 DEBUG [filter.GeoServerSecurityContextPersistenceFilter$1] - SecurityContextHolder now cleared, as request processing completed
2014-03-31 16:14:07,244 DEBUG [security.RESTfulPathBasedFilterInvocationDefinitionMap] - Converted URL to lowercase, from: '/rest/workspaces.json'; to: '/rest/workspaces.json' and httpMethod= GET
2014-03-31 16:14:07,244 DEBUG [security.RESTfulPathBasedFilterInvocationDefinitionMap] - ~~~~~~~~~~ antPath= /** methodList= [GET]
2014-03-31 16:14:07,244 DEBUG [security.RESTfulPathBasedFilterInvocationDefinitionMap] - Candidate is: '/rest/workspaces.json'; antPath is /**; matchedPath=true; matchedMethods=true
2014-03-31 16:14:07,244 DEBUG [security.RESTfulPathBasedFilterInvocationDefinitionMap] - returning ADMIN
2014-03-31 16:14:07,245 DEBUG [filter.GeoServerSecurityContextPersistenceFilter$1] - SecurityContextHolder now cleared, as request processing completed
2014-03-31 16:14:39,681 DEBUG [geoserver.monitor] - Testing /web/ for monitor filtering
2014-03-31 16:14:39,681 DEBUG [geoserver.monitor] - /geoserver/web/ was filtered from monitoring
2014-03-31 16:14:39,681 TRACE [ows.OWSHandlerMapping] - No handler mapping found for [/web/]
2014-03-31 16:14:39,681 TRACE [ows.OWSHandlerMapping] - No handler mapping found for [/web/]
2014-03-31 16:14:39,681 TRACE [ows.OWSHandlerMapping] - No handler mapping found for [/web/]
2014-03-31 16:14:39,681 TRACE [ows.OWSHandlerMapping] - No handler mapping found for [/web/]
2014-03-31 16:14:39,681 TRACE [ows.OWSHandlerMapping] - No handler mapping found for [/web/]
2014-03-31 16:14:39,682 DEBUG [org.geoserver] - Thread 13 locking in mode WRITE
2014-03-31 16:14:39,682 DEBUG [org.geoserver] - Thread 13 got the lock in mode WRITE
2014-03-31 16:14:39,689 DEBUG [geoserver.web] - cannot convert url: jar:file:/C:/Program%20Files%20(x86)/Boundless/OpenGeo/jetty/webapps/geoserver/WEB-INF/lib/web-core-2.4-SNAPSHOT.jar!/org/geoserver/web/css/blueprint/screen.css to file (URI is not hierarchical), falling back to the inputstream for polling
2014-03-31 16:14:39,691 DEBUG [geoserver.web] - cannot convert url: jar:file:/C:/Program%20Files%20(x86)/Boundless/OpenGeo/jetty/webapps/geoserver/WEB-INF/lib/web-core-2.4-SNAPSHOT.jar!/org/geoserver/web/css/blueprint/print.css to file (URI is not hierarchical), falling back to the inputstream for polling
2014-03-31 16:14:39,693 DEBUG [geoserver.web] - cannot convert url: jar:file:/C:/Program%20Files%20(x86)/Boundless/OpenGeo/jetty/webapps/geoserver/WEB-INF/lib/web-core-2.4-SNAPSHOT.jar!/org/geoserver/web/css/geoserver.css to file (URI is not hierarchical), falling back to the inputstream for polling
2014-03-31 16:14:39,696 DEBUG [geoserver.web] - cannot convert url: jar:file:/C:/Program%20Files%20(x86)/Boundless/OpenGeo/jetty/webapps/geoserver/WEB-INF/lib/web-core-2.4-SNAPSHOT.jar!/org/geoserver/web/css/blueprint/ie.css to file (URI is not hierarchical), falling back to the inputstream for polling
2014-03-31 16:14:39,698 DEBUG [geoserver.web] - cannot convert url: jar:file:/C:/Program%20Files%20(x86)/Boundless/OpenGeo/jetty/webapps/geoserver/WEB-INF/lib/web-core-2.4-SNAPSHOT.jar!/org/geoserver/web/js/jquery-1.2.6.min.js to file (URI is not hierarchical), falling back to the inputstream for polling
2014-03-31 16:14:39,701 DEBUG [geoserver.web] - cannot convert url: jar:file:/C:/Program%20Files%20(x86)/Boundless/OpenGeo/jetty/webapps/geoserver/WEB-INF/lib/web-core-2.4-SNAPSHOT.jar!/org/geoserver/web/js/jquery.inline-info.js to file (URI is not hierarchical), falling back to the inputstream for polling

Please, anybody can help me?
Thanks in advance