Should you find that you have some links in your WebSphere Administration console that generate an error in the following format:

com.ibm.ws.webcontainer.webapp.WebAppErrorReport:
SRVE0190E: File not found: /xxxxxxxxxxx.content.main
at com.ibm.ws.webcontainer.webapp.WebAppDispatcherContext.sendError(WebAppDispatcherContext.java)
at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java)
at com.ibm.ws.webcontainer.servlet.FilterProxyServlet.dispatch(FilterProxyServlet.java)
at com.ibm.ws.webcontainer.servlet.FilterProxyServlet.service(FilterProxyServlet.java)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
t com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java(Compiled Code))
at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.invokeFilters(WebExtensionProcessor.java)
at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java)

It appears that the admin console couldn’t find the servlet that should be used to display the page.

You likely have a corrupted Admin console registry. You can run

iscdeploy -restore

from the ‘bin’ directory of the profile in question. This will cause WebSphere Application Server to reinstall the admin console.

The relevant information from an IBM technote can be found here.