please help this error

By: naseer*** On: Sat Jan 06 20:53:50 IST 2018     0 0 0	0
HTTP Status 500 - Error instantiating servlet class org.springframework.web.servlet.DispatcherServlet type Exception report message Error instantiating servlet class org.springframework.web.servlet.DispatcherServlet description The server encountered an internal error that prevented it from fulfilling this request. exception ---------------------------------------------------------- How to resolve this issue	0