Error page exception

The server cannot use the error page specified for your application to handle the Original Exception printed below. Please see the Error Page Exception below for a description of the problem with the specified error page.

Original Exception:

Error Message: Filter [BorneoHomepageFilter]: filter is unavailable.
Error Code: 500
Target Servlet: /index.jsp
Error Stack:
java.lang.NullPointerException
     at com.bofa.ecomm.snf.web.global.BorneoHomepageFilter.doFilter(BorneoHomepageFilter.java:139)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
     at com.bofa.ecomm.snf.web.global.PilotRedirectFilter.doFilter(PilotRedirectFilter.java:124)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
     at com.bofa.ecomm.snf.web.global.SecurityParamFilter.doFilter(SecurityParamFilter.java:99)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)