edit

app/cash/lib/Set.php

@@ -17,8 +17,10 @@ class Set
     {
         if ($type == 1) {
             $string = 'Y年m月';
-        } else {
+        } elseif ($type == 2) {
             $string = 'Y年W周';
+        } else {
+            $string = 'Y年m月d日';
         }
 
         return date($string, $day);