HTTP ERROR 500

[Ceciaman]

When i call http://www.mysite.com:8080/BlueBox/HttpBox.do i've recive
HTTP ERROR 500
Problem accessing /BlueBox/HttpBox.do. Reason: null


Caused by:
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:415)
at java.lang.Integer.parseInt(Integer.java:497)
at it.gotoandplay.smartfoxserver.httpbox.util.ClientActivityMonitor.(ClientActivityMonitor.java:40)
at it.gotoandplay.smartfoxserver.httpbox.ConnectionManager.(ConnectionManager.java:62)
at it.gotoandplay.smartfoxserver.httpbox.ConnectionManager.getInstance(ConnectionManager.java:50)
at it.gotoandplay.smartfoxserver.httpbox.HttpBox.init(HttpBox.java:76)
at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:431)
at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:478)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at it.gotoandplay.smartfoxserver.httpbox.filter.SessionIDFilter.doFilter(SessionIDFilter.java:195)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:865)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451)

[Lapo]

Your BlueBox is probably not well configured.
Unfortunately you haven't specified the Server version, OS type, BlueBox version and any other details that might help, so it's difficult to guess.
Please provide those details together with the bluebox.properties file settings.

Thanks