Erro desconhecido ao subir tomCat

Front-end
#1

Olá pessoal. Blz ?
Gostaria de saber se há alguém que possa me dar uma ajuda. Estou tentando subir uma aplição web no tomCat e estou obtendo o seguinte erro.

08/11/2013 16:00:02 org.apache.coyote.http11.Http11AprProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
08/11/2013 16:00:02 org.apache.coyote.ajp.AjpAprProtocol init
INFO: Initializing Coyote AJP/1.3 on ajp-8009
08/11/2013 16:00:02 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 562 ms
08/11/2013 16:00:02 org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
08/11/2013 16:00:02 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.17
08/11/2013 16:00:02 org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
08/11/2013 16:00:02 org.apache.catalina.startup.HostConfig deployDescriptor
WARNING: A docBase C:\Arquivos de programas\Apache Software Foundation\Tomcat 5.5\webapps\web\gram inside the host appBase has been specified, and will be ignored
08/11/2013 16:00:03 org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
08/11/2013 16:00:03 org.apache.catalina.core.StandardContext start
SEVERE: Context [/gram] startup failed due to previous errors
08/11/2013 16:00:04 org.apache.coyote.http11.Http11AprProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
08/11/2013 16:00:04 org.apache.coyote.ajp.AjpAprProtocol start
INFO: Starting Coyote AJP/1.3 on ajp-8009
08/11/2013 16:00:04 org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
08/11/2013 16:00:04 org.apache.catalina.startup.Catalina start
INFO: Server startup in 2641 ms

O que representa esse erro “SEVERE: Error filterStart”. Desde já agradeço.

#2