Fix employee adding

app/services/supplier_employees_settings.rb

@@ -112,6 +112,10 @@ class SupplierEmployeesSettings
       all_employees_settings.supplier.save
     end
 
+    def supplier
+      all_employees_settings.supplier
+    end
+
     # Parse a method name to its underlying operations
     #   settings.is_manager?
     # is a getter for the attribute manager