Oops.

routes/web.php

@@ -13,6 +13,7 @@
 
 require(__DIR__.'/class/board.php');
 // require(__DIR__.'/class/image.php');
+require(__DIR__.'/class/invoice.php');
 require(__DIR__.'/class/site.php');
 require(__DIR__.'/class/store.php');
 require(__DIR__.'/class/user.php');