Erro 505

pessoal estou entrando em parafuso, será que algum pode me dar um help ?

Esta dando erro e não consegui achar.

Obrigado.


type Exception report

message

descriptionThe server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: org.hibernate.exception.GenericJDBCException: Could not open connection

root cause

javax.faces.el.EvaluationException: org.hibernate.exception.GenericJDBCException: Could not open connection

root cause

org.hibernate.exception.GenericJDBCException: Could not open connection

root cause

java.sql.SQLException: Connections could not be acquired from the underlying database!

root cause

com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.

note The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 3.1.2.2 logs.