R12.1.3 site gets 500 Internal Server Error
R12.1.3 EBS site get 500 error in IE11. It also gets error on Firefox with below message:
500 Internal Server Error
Servlet error: An exception occurred. The current application deployment descriptors do not allow for including it in this response. Please consult the application log for details.
Page https://sitename.domain.com works fine and but when it is re-directed to https://sitename.domain.com/OA_HTML/AppsLogin, it get frozen/hang and then posts a 500 error.
Page https://sitename.domain.com/OA_HTML/jsp/fnd/aoljtest.jsp take a while to load, but it works ok.