Error under MWS when opening a Blaze Advisor Busines Rule Project

Hello,

I have generated under Blaze Advisor a Rule Maintenance Application and successfully deployed it to MWS using SysAdmin user.
After deployment process, I have assigned the user “Administrator” all the permissions on “My webMethods Application” ressource Type where I can also see specific Permissions for my freshly deployed project (Read Rules, Modify Rules, Deploy Rules …).

The problem is that when I try click on my Rules project name under Administration > business > Business Rules, I get the following error :
[SIZE=2]HTTP ERROR: 503
Problem accessing /wm_rma_Projet_Calcul_DP/index.jsp. Reason:
SERVICE_UNAVAILABLE

And in MWS logs I can see the following error :

Role does not exist: Projet_Calcul_DP.blaze.rma
2011-08-29 16:13:13 CEST (org.mortbay.log:WARN) - Request /wm_rma_Projet_Calcul_DP/index.jsp failed - no realm
2011-08-29 16:13:13 CEST (org.mortbay.log:WARN) - Committed before 500 No realm
2011-08-29 16:13:13 CEST (org.mortbay.log:ERROR) - /wm_rma_Projet_Calcul_DP/index.jsp?items=0
java.lang.IllegalStateException: Committed
at org.mortbay.jetty.Response.resetBuffer(Response.java:1037)
at org.mortbay.jetty.Response.sendError(Response.java:253)
at org.mortbay.jetty.security.SecurityHandler.check(SecurityHandler.java:422)
at org.mortbay.jetty.security.SecurityHandler.checkSecurityConstraints(SecurityHandler.java:269)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:191)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
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:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451)

[SIZE=1]Does anyone have an idea about that error and how can I solve it in order to access my Rule Maintenance application ?

Thank you in advance for your precious help

PS : currently using MWS version [/SIZE][/SIZE] 8.2.1.0.299

Anyone can help on this ? I really need assistance