Fixes missing error translation for not meeting statistics challenge value.

src/main/java/world/bentobox/challenges/tasks/TryToComplete.java

@@ -1428,6 +1428,7 @@ public class TryToComplete
         {
             Utils.sendMessage(this.user, this.user.getTranslation("challenges.errors.requirement-not-met",
                 TextVariables.NUMBER, String.valueOf(requirements.getAmount()),
+                "[statistic]", Utils.prettifyObject(requirements.getStatistic(), this.user),
                 "[value]", String.valueOf(currentValue)));
         }
         else

src/main/resources/locales/en-US.yml

@@ -1203,6 +1203,7 @@ challenges:
         no-library-entries: "&c Cannot find any library entries. Nothing to show."
         not-hooked: "&c Challenges Addon could not find any GameMode."
         timeout: "&c This challenge requires to wait [timeout] between completions. You must wait [wait-time] till complete it again."
+        requirement-not-met: "&c This challenge requires [statistic] to have [number]. You have only [value]. "
 #    # Showcase for manual material translation
 #    materials:
 #        # Names should be lowercase.