修正

scripts/paint.js

@@ -872,7 +872,7 @@ deletePostReally ()
               {
                 const searchParams = new URLSearchParams (window.location.search);
 
-                window.location.href = `./delete.php?thread=${searchParams.get (
+                window.location.href = `./modules/delete.php?thread=${searchParams.get (
                     'thread')}&id=${delId.value}&pass=${delPass.value}`;
               }
             else