unable to draw from empty DrawCardDeck

src/main/java/de/hsfulda/onses/services/GameService.java

@@ -32,6 +32,7 @@ public class GameService {
 
     public void drawCard(int amount) {
         Player player = null;
+        if (!game.getDrawCardDeck().isEmpty()) {
             if (game.getPlayerService().getCurrentTurn()) {
                 player = game.getPlayerService().getPlayerList().getFirst();
             } else {
@@ -41,6 +42,7 @@ public class GameService {
                 player.getPlayerDeck().add(game.getDrawCardDeck().getFirst());
                 game.getDrawCardDeck().removeFirst();
             }
+        }
         if (amount != 1) {
             nextPlayer();
         }