Fixed update posts error

App/Controllers/Posts.php

@@ -329,6 +329,7 @@ class Posts
         foreach ($args as $key => $val) {
             if (strpos($val, "##date##") !== false) {
                 $date = new \DateTime();
+                $now = $date->format("Y-m-d");
                 $args[$key] = $now;
             }
         }

App/Views/Data/pengumuman.html

@@ -60,7 +60,7 @@
                     <div class="fourth-900 half-600 card box" style="background-color:{{ post.background }};">
                         <span class="stack" style="font-size:smaller;color:rgba(17,17,17,.4);margin-bottom:.6em;">[{{ post.valid_at|date("d/m/Y") }} - {{ post.expired_at|date("d/m/Y") }}]</span>
                         <span class="stack" style="color:{{ post.foreground }};">{{ post.content|rendermd }}</span>
-                        <form method="post">
+                        <form method="post" action="/">
                             <footer class="flex full grow">
                                 {% if post.status != 0 %}
                                     <div class="half-900">