diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ad9e73ce..29f7f25bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 - Used datastore to show statistic for more performance [\#1309](https://github.com/torrentpier/torrentpier/pull/1309) ([belomaxorka](https://github.com/belomaxorka))
 - Used `humn_size()` to count average of releases in tr_stats.php [\#1313](https://github.com/torrentpier/torrentpier/pull/1313) ([belomaxorka](https://github.com/belomaxorka))
 - Some enhancements in default template [\#1312](https://github.com/torrentpier/torrentpier/pull/1312) ([belomaxorka](https://github.com/belomaxorka))
+- Set response code in some cases [\#1319](https://github.com/torrentpier/torrentpier/pull/1319) ([belomaxorka](https://github.com/belomaxorka))
 - Minor improvements [\#1306](https://github.com/torrentpier/torrentpier/pull/1306), [\#1307](https://github.com/torrentpier/torrentpier/pull/1307), [\#1308](https://github.com/torrentpier/torrentpier/pull/1308), [\#1315](https://github.com/torrentpier/torrentpier/pull/1315) ([belomaxorka](https://github.com/belomaxorka))
 - Updated deps [\#1304](https://github.com/torrentpier/torrentpier/pull/1304), [\#1305](https://github.com/torrentpier/torrentpier/pull/1305) ([belomaxorka](https://github.com/belomaxorka))
 
diff --git a/common.php b/common.php
index da1fb442e..5fa647ddd 100644
--- a/common.php
+++ b/common.php
@@ -39,6 +39,7 @@ if (!defined('BB_SCRIPT')) {
 }
 
 header('X-Frame-Options: SAMEORIGIN');
+date_default_timezone_set('UTC');
 
 // Cloudflare
 if (isset($_SERVER['HTTP_CF_CONNECTING_IP'])) {
diff --git a/dl.php b/dl.php
index 0362682b6..4d77a9ffd 100644
--- a/dl.php
+++ b/dl.php
@@ -40,8 +40,7 @@ function send_file_to_browser($attachment, $upload_dir)
     // Please do not change this, it is a security precaution
     if (!str_contains($attachment['mimetype'], 'image')) {
         $attachment['mimetype'] = 'application/octet-stream';
-    }
-    else {
+    } else {
         header('Cache-Control: public, max-age=3600');
     }
 
@@ -147,7 +146,7 @@ for ($i = 0; $i < $num_auth_pages && $authorised == false; $i++) {
 
 // Check the auth rights
 if (!$authorised) {
-    bb_die($lang['SORRY_AUTH_VIEW_ATTACH']);
+    bb_die($lang['SORRY_AUTH_VIEW_ATTACH'], 403);
 }
 
 $datastore->rm('cat_forums');
diff --git a/filelist.php b/filelist.php
index 9cd8b5dfa..90697d7e6 100644
--- a/filelist.php
+++ b/filelist.php
@@ -13,15 +13,13 @@ require __DIR__ . '/common.php';
 $user->session_start();
 
 if ($bb_cfg['bt_disable_dht'] && IS_GUEST) {
-    http_response_code(403);
-    bb_simple_die($lang['BT_PRIVATE_TRACKER']);
+    bb_simple_die($lang['BT_PRIVATE_TRACKER'], 403);
 }
 
 $topic_id = !empty($_GET['topic']) ? (int)$_GET['topic'] : false;
 
 if (!$topic_id) {
-    http_response_code(404);
-    bb_simple_die($lang['INVALID_TOPIC_ID']);
+    bb_simple_die($lang['INVALID_TOPIC_ID'], 404);
 }
 
 $sql = 'SELECT t.attach_id, t.info_hash, t.info_hash_v2, t.size, ad.physical_filename
@@ -34,20 +32,17 @@ $sql = 'SELECT t.attach_id, t.info_hash, t.info_hash_v2, t.size, ad.physical_fil
 $row = DB()->fetch_row($sql);
 
 if (empty($row) || empty($row['physical_filename'])) {
-    http_response_code(404);
-    bb_simple_die($lang['INVALID_TOPIC_ID_DB']);
+    bb_simple_die($lang['INVALID_TOPIC_ID_DB'], 404);
 }
 
 if (empty($row['info_hash_v2'])) {
-    http_response_code(410);
-    bb_simple_die($lang['BT_V2_FLIST_ONLY']);
+    bb_simple_die($lang['BT_V2_FLIST_ONLY'], 410);
 }
 
 $file_path = get_attachments_dir() . '/' . $row['physical_filename'];
 
 if (!is_file($file_path)) {
-    http_response_code(410);
-    bb_simple_die($lang['TOR_NOT_FOUND']);
+    bb_simple_die($lang['TOR_NOT_FOUND'], 410);
 }
 
 $file_contents = file_get_contents($file_path);
@@ -58,27 +53,22 @@ if ($bb_cfg['flist_max_files']) {
     $file_count = substr_count($file_contents, '6:length', $filetree_pos, ($files_pos ? ($files_pos - $filetree_pos) : null));
 
     if ($file_count > $bb_cfg['flist_max_files']) {
-        http_response_code(410);
-        bb_simple_die(sprintf($lang['BT_V2_FLIST_LIMIT'], $bb_cfg['flist_max_files'], $file_count));
+        bb_simple_die(sprintf($lang['BT_V2_FLIST_LIMIT'], $bb_cfg['flist_max_files'], $file_count), 410);
     }
 }
 
 try {
     $torrent = \Arokettu\Bencode\Bencode::decode($file_contents, dictType: \Arokettu\Bencode\Bencode\Collection::ARRAY);
 } catch (\Exception $e) {
-    http_response_code(410);
-    bb_simple_die(htmlCHR("{$lang['TORFILE_INVALID']}: {$e->getMessage()}"));
+    bb_simple_die(htmlCHR("{$lang['TORFILE_INVALID']}: {$e->getMessage()}"), 410);
 }
 
 if (isset($torrent['info']['private']) && IS_GUEST) {
-    http_response_code(403);
-    bb_simple_die($lang['BT_PRIVATE_TORRENT']);
+    bb_simple_die($lang['BT_PRIVATE_TORRENT'], 403);
 }
 
 $files = (new TorrentPier\Legacy\TorrentFileList($torrent))->fileTreeTable($torrent['info']['file tree']);
 
-date_default_timezone_set('UTC');
-
 $data = [
     'name' => isset($torrent['info']['name']) ? htmlCHR(substr($torrent['info']['name'], 0, 255)) : 'undefined',
     'client' => isset($torrent['created by']) ? htmlCHR(substr($torrent['created by'], 0, 20)) : 'unknown client',
diff --git a/library/ajax/callseed.php b/library/ajax/callseed.php
index eea5f7b10..c02d4a1bb 100644
--- a/library/ajax/callseed.php
+++ b/library/ajax/callseed.php
@@ -82,7 +82,7 @@ function topic_info($topic_id)
 	";
 
     if (!$torrent = DB()->fetch_row($sql)) {
-        bb_die($lang['TOPIC_POST_NOT_EXIST']);
+        bb_die($lang['TOPIC_POST_NOT_EXIST'], 404);
     }
 
     return $torrent;
diff --git a/library/ajax/topic_tpl.php b/library/ajax/topic_tpl.php
index 580d2c883..b603d8450 100644
--- a/library/ajax/topic_tpl.php
+++ b/library/ajax/topic_tpl.php
@@ -124,7 +124,7 @@ switch ($mode) {
         if ($tpl_data['tpl_last_edit_tm'] > $this->request['tpl_l_ed_tst'] && $tpl_data['tpl_last_edit_by'] != $userdata['user_id']) {
             $last_edit_by_username = get_username((int)$tpl_data['tpl_last_edit_by']);
             $msg = "Изменения не были сохранены!\n\n";
-            $msg .= 'Шаблон был отредактирован: ' . htmlCHR($last_edit_by_username) . ', ' . bb_date($tpl_data['tpl_last_edit_tm'], 'd-M-y H:i');
+            $msg .= 'Шаблон был отредактирован: ' . html_ent_decode($last_edit_by_username) . ', ' . bb_date($tpl_data['tpl_last_edit_tm'], 'd-M-y H:i');
             $this->ajax_die($msg);
         }
         $sql = "UPDATE " . BB_TOPIC_TPL . " SET " . DB()->build_array('UPDATE', $sql_args) . " WHERE tpl_id = $tpl_id";
diff --git a/library/includes/functions.php b/library/includes/functions.php
index 76f50206a..f1bd17224 100644
--- a/library/includes/functions.php
+++ b/library/includes/functions.php
@@ -1628,10 +1628,14 @@ function obtain_word_list(&$orig_word, &$replacement_word)
     return true;
 }
 
-function bb_die($msg_text)
+function bb_die($msg_text, $status_code = null)
 {
     global $ajax, $bb_cfg, $lang, $template, $theme, $userdata, $user;
 
+    if (isset($status_code)) {
+        http_response_code($status_code);
+    }
+
     if (defined('IN_AJAX')) {
         $ajax->ajax_die($msg_text);
     }
@@ -1682,15 +1686,20 @@ function bb_die($msg_text)
     exit;
 }
 
-function bb_simple_die($txt)
+function bb_simple_die($txt, $status_code = null)
 {
     global $bb_cfg;
 
+    header('Content-Type: text/plain; charset=' . $bb_cfg['charset']);
+
+    if (isset($status_code)) {
+        http_response_code($status_code);
+    }
+
     if (!empty($_COOKIE['explain'])) {
         bb_die("bb_simple_die:<br /><br />$txt");
     }
 
-    header('Content-Type: text/plain; charset=' . $bb_cfg['charset']);
     die($txt);
 }
 
@@ -1733,7 +1742,7 @@ function redirect($url)
     $redirect_url = $server_protocol . $server_name . $server_port . $script_name . preg_replace('#^\/?(.*?)\/?$#', '/\1', $url);
 
     // Behave as per HTTP/1.1 spec for others
-    header('Location: ' . $redirect_url);
+    header('Location: ' . $redirect_url, response_code: 301);
     exit;
 }
 
diff --git a/library/includes/init_bb.php b/library/includes/init_bb.php
index 136e11c4e..5e11ef37b 100644
--- a/library/includes/init_bb.php
+++ b/library/includes/init_bb.php
@@ -444,15 +444,14 @@ if (
  * Exit if board is disabled via trigger
  */
 if (($bb_cfg['board_disable'] || is_file(BB_DISABLED)) && !defined('IN_ADMIN') && !defined('IN_AJAX') && !defined('IN_LOGIN')) {
-    http_response_code(503);
     if ($bb_cfg['board_disable']) {
         // admin lock
         send_no_cache_headers();
-        bb_die('BOARD_DISABLE');
+        bb_die('BOARD_DISABLE', 503);
     } elseif (is_file(BB_DISABLED)) {
         // trigger lock
         TorrentPier\Helpers\CronHelper::releaseDeadlock();
         send_no_cache_headers();
-        bb_die('BOARD_DISABLE_CRON');
+        bb_die('BOARD_DISABLE_CRON', 503);
     }
 }
diff --git a/viewtopic.php b/viewtopic.php
index b20701099..c0022faf8 100644
--- a/viewtopic.php
+++ b/viewtopic.php
@@ -55,7 +55,7 @@ if (isset($_REQUEST['single'])) {
 }
 
 if (!$topic_id && !$post_id) {
-    bb_die($lang['TOPIC_POST_NOT_EXIST']);
+    bb_die($lang['TOPIC_POST_NOT_EXIST'], 404);
 }
 
 $tracking_topics = get_tracks('topic');
@@ -100,12 +100,12 @@ if ($topic_id) {
 		WHERE p.post_id = $post_id
 	";
 } else {
-    bb_die($lang['TOPIC_POST_NOT_EXIST']);
+    bb_die($lang['TOPIC_POST_NOT_EXIST'], 404);
 }
 
 if (!$t_data = DB()->fetch_row($sql)) {
     meta_refresh('index.php', 10);
-    bb_die($lang['TOPIC_POST_NOT_EXIST']);
+    bb_die($lang['TOPIC_POST_NOT_EXIST'], 404);
 }
 
 $forum_topic_data =& $t_data;
@@ -166,7 +166,7 @@ if (!$is_auth['auth_read']) {
         $redirect .= ($start && !$post_id) ? "&start=$start" : '';
         redirect(LOGIN_URL . "?redirect=$redirect");
     }
-    bb_die($lang['TOPIC_POST_NOT_EXIST']);
+    bb_die($lang['TOPIC_POST_NOT_EXIST'], 404);
 }
 
 $forum_name = $t_data['forum_name'];