Rational Requirements Composer - Snapshots are not working.

When using RRC to create snapshots it says that the snapshot is created but I cannot see it in my list of "Latest snapshots". I have some errors related to equinoxbridgeservlet. Did someone had ever this problem ?

[9/10/12 14:54:40:141 EDT] 0000001e servlet       E com.ibm.ws.webcontainer.servlet.ServletWrapper service SRVE0068E: Uncaught exception created in one of the service methods of the servlet equinoxbridgeservlet in application jazz_war. Exception created : java.lang.NullPointerException
        at com.ibm.team.jfs.app.oauth.OAuthCookieNames.<init>(OAuthCookieNames.java:95)
        at net.jazz.ajax.service.internal.http.ProxyHandler.handle(ProxyHandler.java:598)

[9/10/12 14:54:40:144 EDT] 0000001e webapp        E com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E: [Servlet Error]-[equinoxbridgeservlet]: java.lang.NullPointerException
        at com.ibm.team.jfs.app.oauth.OAuthCookieNames.<init>(OAuthCookieNames.java:95)

[9/10/12 14:54:45:341 EDT] 00000022 servlet       E com.ibm.ws.webcontainer.servlet.ServletWrapper service SRVE0068E: Uncaught exception created in one of the service methods of the servlet equinoxbridgeservlet in application jazz_war. Exception created : java.lang.NullPointerException
        at com.ibm.team.jfs.app.oauth.OAuthCookieNames.<init>(OAuthCookieNames.java:95)
        at net.jazz.ajax.service.internal.http.ProxyHandler.handle(ProxyHandler.java:598)
        at net.jazz.ajax.service.internal.http.CompactRenderingHandler.getCompactRenderingProxy(CompactRenderingHandler.java:278)