org.bonitasoft.console.common.server.utils.DefaultTenantIdException when try to access portal

i m using windows server 2008 r2 and i have already running tomcate i just downloaded deployment package and by mergeing it as per documentation . ho to http://server/bonita but it gives error 500 :org.bonitasoft.console.common.server.utils.DefaultTenantIdException

what should i do ???