503 Service Unavailable Error: Application cannot be started

Error Log

std_server0.out log from java work directory (/usr/sap/<SID>/<instance>/work) has the entries:
Service [tc~je~webservices~srv] start ================= ERROR =================

CSN Component [BC-ESI-WS-JAV-RT], DC Name [sap.com/tc~je~webservices~srv]

java.lang.NoClassDefFoundError: com/sap/engine/services/webservices/espbase/client/dsr/DSRFacade

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:249)

Caused by: java.lang.ClassNotFoundException: com.sap.engine.services.webservices.espbase.client.dsr.DSRFacade