Error msg when trying to authorise access to forum

[Campaigners]

I have received the following error msg when trying to authorise someone to access my forum:

Error 500
url=http://n2.nabble.com/user/Unauthorized$Authorize.jtp?code=d2VuZHkxNDA2QGhvdG1haWwuY28udWt8MjM2MDI5M3x5fDEzNDMxOTMwNjY=  user-agent=Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) referer=null
RequestURI=/user/Unauthorized$Authorize.jtp

Caused by:
fschmidt.util.servlet.JtpContextServlet$JtpRuntimeException: url=http://n2.nabble.com/user/Unauthorized$Authorize.jtp?code=d2VuZHkxNDA2QGhvdG1haWwuY28udWt8MjM2MDI5M3x5fDEzNDMxOTMwNjY=  user-agent=Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) referer=null
        at fschmidt.util.servlet.JtpContextServlet.handleException(JtpContextServlet.java:620)
        at fschmidt.util.servlet.JtpContextServlet.service2(JtpContextServlet.java:514)
        at fschmidt.util.servlet.JtpContextServlet.service(JtpContextServlet.java:316)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
        at fschmidt.util.servlet.GzipFilter.doFilter(GzipFilter.java:137)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at cachingfilter.CachingFilter.doFilter(CachingFilter.java:120)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at fschmidt.util.servlet.BadBotFilter.doFilter(BadBotFilter.java:74)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        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:326)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
        at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
        at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
Caused by: java.lang.RuntimeException: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "member_pkey"
        at nabble.model.MemberImpl.insert(MemberImpl.java:112)
        at nabble.model.NodeImpl.addMember(NodeImpl.java:2540)
        at nabble.view.web.user.Unauthorized$Authorize.service(Unauthorized.java:238)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at fschmidt.util.servlet.JtpContextServlet.service2(JtpContextServlet.java:512)
        ... 25 more
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "member_pkey"
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327)
        at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:304)
        at nabble.model.MemberImpl.insert(MemberImpl.java:108)
        ... 29 more

Caused by:
java.lang.RuntimeException: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "member_pkey"
        at nabble.model.MemberImpl.insert(MemberImpl.java:112)
        at nabble.model.NodeImpl.addMember(NodeImpl.java:2540)
        at nabble.view.web.user.Unauthorized$Authorize.service(Unauthorized.java:238)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at fschmidt.util.servlet.JtpContextServlet.service2(JtpContextServlet.java:512)
        at fschmidt.util.servlet.JtpContextServlet.service(JtpContextServlet.java:316)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
        at fschmidt.util.servlet.GzipFilter.doFilter(GzipFilter.java:137)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at cachingfilter.CachingFilter.doFilter(CachingFilter.java:120)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at fschmidt.util.servlet.BadBotFilter.doFilter(BadBotFilter.java:74)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
        at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
        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.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "member_pkey"
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327)
        at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:304)
        at nabble.model.MemberImpl.insert(MemberImpl.java:108)
        ... 29 more

Caused by:
org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "member_pkey"
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327)
        at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:304)
        at nabble.model.MemberImpl.insert(MemberImpl.java:108)
        at nabble.model.NodeImpl.addMember(NodeImpl.java:2540)
        at nabble.view.web.user.Unauthorized$Authorize.service(Unauthorized.java:238)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at fschmidt.util.servlet.JtpContextServlet.service2(JtpContextServlet.java:512)
        at fschmidt.util.servlet.JtpContextServlet.service(JtpContextServlet.java:316)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
        at fschmidt.util.servlet.GzipFilter.doFilter(GzipFilter.java:137)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at cachingfilter.CachingFilter.doFilter(CachingFilter.java:120)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at fschmidt.util.servlet.BadBotFilter.doFilter(BadBotFilter.java:74)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
        at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
        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.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)

[Hugo <Nabble>]

Thanks for reporting this bug, we will fix it.
The exception you got says that the user is already authorized. Please check the list of members to confirm this.