made loadFromJson non-static

src/main/java/Vault.java

@@ -16,7 +16,7 @@ public class Vault implements VaultInterface {
 
     }
 
-    static public void loadFromJson(){
+    public void loadFromJson(){
 
     }
 

src/main/java/VaultInterface.java

@@ -6,9 +6,6 @@ public interface VaultInterface {
     public void addCredential();
     public void showCredential();
     public void getAsJson();
-
-    static public void loadFromJson() {
-
-    };
+    public void loadFromJson();
 
 }