try fix

application-pemc-top-sit.yml

@@ -5,4 +5,5 @@ spring:
     host: crss-top-sitrabbitmq.marathon.l4lb.thisdcos.directory
 
 crss:
-  api.gateway: http://crss-top-sitcrss1application-main-ui.marathon.l4lb.thisdcos.directory:8080
+  api.gateway: http://crss-top-sitcrss1application-main-ui.marathon.l4lb.thisdcos.directory:8080
+  security.url: ${crss.api.gateway}/admin