Several questions / errors

I write from Canary Island, Spain. Sorry my English.
First I want to thank you for your work.
I have several quiestion and errors:
1) In Data Source, I add a OPC DA (KepServer) which is installed in a server. I can add tags manually and I watch the values in a "watch list", but when I push the button "Examinar Tags" nothing happens and in the file logs  "stdout_20141117.log" appears this error:
INFO  2014-11-17 13:22:19,486 (org.openscada.opc.lib.da.Server.connect:109) - Socket timeout: 0  
at org.openscada.opc.lib.da.Group.addItems(
at org.openscada.opc.lib.da.Group.addItem(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.directwebremoting.impl.ExecuteAjaxFilter.doFilter(
at org.directwebremoting.impl.DefaultRemoter$1.doFilter(
at org.directwebremoting.impl.DefaultRemoter$1.doFilter(
at com.serotonin.web.dwr.LocalizationFilter.doFilter(
at org.directwebremoting.impl.DefaultRemoter$1.doFilter(
at org.directwebremoting.impl.DefaultRemoter$1.doFilter(
at org.directwebremoting.impl.DefaultRemoter.execute(
at org.directwebremoting.impl.DefaultRemoter.execute(
at org.directwebremoting.servlet.PlainCallHandler.handle(
at org.directwebremoting.servlet.UrlProcessor.handle(
at org.directwebremoting.servlet.DwrServlet.doPost(
at javax.servlet.http.HttpServlet.service(
at javax.servlet.http.HttpServlet.service(
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
at org.apache.catalina.core.ApplicationFilterChain.doFilter(
at org.apache.catalina.core.StandardWrapperValve.invoke(
at org.apache.catalina.core.StandardContextValve.invoke(
at org.apache.catalina.core.StandardHostValve.invoke(
at org.apache.catalina.valves.ErrorReportValve.invoke(
at org.apache.catalina.core.StandardEngineValve.invoke(
at org.apache.catalina.connector.CoyoteAdapter.service(
at org.apache.coyote.http11.Http11AprProcessor.process(
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(
at Source)
2) In "ClienteJavaWeb", when I push in "Get Status" I get this error:  Error: Connection failed. Verify the API Address and username/password.
   The username and password are the same as ScadaBR website? 
3) In windows console, when I execute "java - jar watchdog.jar" I get this error:
log4j:WARN No appenders could be found for logger (org.quartz.simpl.SimpleThread
log4j:WARN Please initialize the log4j system properly.
nov 17, 2014 1:50:31 PM main
INFORMACIËN: ScadaBR Watchdog Started
nov 17, 2014 1:50:31 PM main
nov 17, 2014 1:50:32 PM org.apache.axis.utils.JavaUtils isAttachmentSupported
ADVERTENCIA: Unable to find required classes (javax.activation.DataHandler and j
avax.mail.internet.MimeMultipart). Attachment support is disabled.
nov 17, 2014 1:50:32 PM execute
GRAVE: ScadaBR Failed
nov 17, 2014 1:50:32 PM restartTomcat
GRAVE: Restarting Tomcat [1]
4)  In the "graphics" folder I have copied the "Dial" folder and renamed it to "Dial1". Also, I renamed the png image.  In the file "Info.txt" I have changed the name attribute (name=Dial1). After restart tomcat service, when I use the "Dial1" in graphics view I get this error: "cannot read property setvalue or undefined". 
Is it not possible to add new dynamic images, for example, other dials?
Best Regards.