SRVE0190E on WebSphere V8.0.0.9

Last monday a customer reports the error SRVE0190E and 404 errors appearing sometimes for some users. After reading lots of trace the error was caused by the following:

The customer has one IBM HTTP Server in front of two cells. One cell is WAS Cluster and another is Portal Cluster.  The websphere pluging-cfg.xml is merged and then deployed on the HTTP Server.

Reading the trace i discovered that the customer has two applications with the same context root installed.  

Solution:  Change the context root of one application.