an implementation is missing

[030]

play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution exception[[RuntimeException: scala.NotImplementedError: an implementation is missing]]
	at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:293)
	at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:220)
	at play.api.GlobalSettings$class.onError(GlobalSettings.scala:160)
	at play.api.DefaultGlobal$.onError(GlobalSettings.scala:188)
	at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:100)
	at play.core.server.netty.PlayRequestHandler$$anonfun$2$$anonfun$apply$1.applyOrElse(PlayRequestHandler.scala:100)
	at play.core.server.netty.PlayRequestHandler$$anonfun$2$$anonfun$apply$1.applyOrElse(PlayRequestHandler.scala:99)
	at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:344)
	at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:343)
	at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)