Hi folks, Our Prweb application was working fine and all of a sudden we are unable to reach the site. Upon entering the site it showed the Pega blue screen with the below error: Details:java.lang.RuntimeException : Problem during method invocation (init) java.lang.RuntimeException: Problem during method invocation (init) at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:279) at com.pega.pegarules.internal.web.servlet.WebStandardBoot.init(WebStandardBoot.java:90) at javax.servlet.GenericServlet.init(GenericServlet.java:158) . . . . Caused by: java.lang.RuntimeException: Unable to get implementation of class com.pega.pegarules.web.impl.WebStandardImpl at com.pega.pegarules.internal.bootstrap.PRBootstrap.getImplementationOf(PRBootstrap.java:213) at com.pega.pegarules.internal.bootstrap.PRBootstrap.getEntry(PRBootstrap.java:324) at com.pega.pegarules.internal.bootstrap.PRBootstrap.getMethod(PRBootstrap.java:304) Upon restart we are able to login properly. But we need to know the nature of this issue so that we can handle it better if it occurs in Production environment. Please help in identifying the root cause of this issue. Thank you.