diff -r 67a02e79b7a1 -r 6a8498291606 src/main/resources/localization/error.properties
--- a/src/main/resources/localization/error.properties	Sat May 16 15:11:07 2020 +0200
+++ b/src/main/resources/localization/error.properties	Sat May 16 15:45:06 2020 +0200
@@ -26,10 +26,11 @@
 h1 = The requested page cannot be displayed.
 errorCode = Code
 
-errorMessage = Message
-errorMessage.404 = Page not found
-errorMessage.403 = Access denied
-errorMessage.500 = Internal error
+errorMessage = Server Message
+code.404 = Page not found
+code.403 = Access denied
+code.500 = Internal error
+code.503 = Service unavailable
 
 errorTimestamp = Timestamp
 errorExceptionText = Internal Exception