diff --git a/Web/Models/Repositories/Audios.php b/Web/Models/Repositories/Audios.php
index 5be250ff4..94a6278bc 100644
--- a/Web/Models/Repositories/Audios.php
+++ b/Web/Models/Repositories/Audios.php
@@ -270,7 +270,7 @@ public function find(string $query, array $params = [], array $order = ['type' =
         $order_str = (in_array($order['type'], ['id', 'length', 'listens']) ? $order['type'] : 'id') . ' ' . ($order['invert'] ? 'ASC' : 'DESC');
         ;
 
-        if ($params["only_performers"] == "1") {
+        if ($params["only_performers"] ?? null == "1") {
             $result->where("performer LIKE ?", $query);
         } else {
             $result->where("CONCAT_WS(' ', performer, name) LIKE ?", $query);
diff --git a/Web/Presenters/OpenVKPresenter.php b/Web/Presenters/OpenVKPresenter.php
index 3ed99a9c2..ed458e32c 100644
--- a/Web/Presenters/OpenVKPresenter.php
+++ b/Web/Presenters/OpenVKPresenter.php
@@ -317,7 +317,7 @@ public function onStartup(): void
             }
         }
 
-        if ($_SERVER['HTTP_X_OPENVK_AJAX_QUERY'] == '1' && $this->user->identity) {
+        if (!empty($_SERVER['HTTP_X_OPENVK_AJAX_QUERY']) && $_SERVER['HTTP_X_OPENVK_AJAX_QUERY'] == '1' && $this->user->identity) {
             error_reporting(0);
             header('Content-Type: text/plain; charset=UTF-8');
         }
diff --git a/Web/Presenters/templates/@layout.xml b/Web/Presenters/templates/@layout.xml
index 34e721961..8f617fe58 100644
--- a/Web/Presenters/templates/@layout.xml
+++ b/Web/Presenters/templates/@layout.xml
@@ -102,7 +102,7 @@
 
         <div class="layout">
             <div id="xhead" class="dm"></div>
-            <div class="page_header{if $instance_name != OPENVK_DEFAULT_INSTANCE_NAME} page_custom_header{/if}{if $atSearch} search_expanded search_expanded_at_all{/if}">
+            <div class="page_header{if $instance_name != OPENVK_DEFAULT_INSTANCE_NAME} page_custom_header{/if}{if $atSearch ?? false} search_expanded search_expanded_at_all{/if}">
                 <a href="/" class="home_button{if $instance_name != OPENVK_DEFAULT_INSTANCE_NAME} home_button_custom{/if}" title="{$instance_name}">{if $instance_name != OPENVK_DEFAULT_INSTANCE_NAME}{$instance_name}{/if}</a>
                 <div n:if="isset($thisUser) ? (!$thisUser->isBanned() XOR !$thisUser->isActivated()) : true" class="header_navigation">
                     {ifset $thisUser}
@@ -133,16 +133,16 @@
                                 <div id="search_box_fr">
                                     <form id='search_form' action="/search" method="get">
                                         <div id='search_and_one_more_wrapper'>
-                                            <input n:attr="value => $_REQUEST['q'] ? $_REQUEST['q'] : NULL" autocomplete="off" type="search" maxlength="79" name="q" placeholder="{_header_search}" title="{_header_search} [Alt+Shift+F]" accesskey="f" />
+                                            <input n:attr="value => $_REQUEST['q'] ?? NULL" autocomplete="off" type="search" maxlength="79" name="q" placeholder="{_header_search}" title="{_header_search} [Alt+Shift+F]" accesskey="f" />
                                             <select name="section">
-                                                <option n:attr="selected => $_REQUEST['section'] == 'users'" value="users">{_s_by_people}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'groups'" value="groups">{_s_by_groups}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'posts'" value="posts">{_s_by_posts}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'videos'" value="videos">{_s_by_videos}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'apps'" value="apps">{_s_by_apps}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'audios'" value="audios">{_s_by_audios}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'audios_playlists'" value="audios_playlists">{_s_by_audios_playlists}</option>
-                                                <option n:attr="selected => $_REQUEST['section'] == 'docs'" value="docs">{_s_by_documents}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'users'" value="users">{_s_by_people}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'groups'" value="groups">{_s_by_groups}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'posts'" value="posts">{_s_by_posts}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'videos'" value="videos">{_s_by_videos}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'apps'" value="apps">{_s_by_apps}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'audios'" value="audios">{_s_by_audios}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'audios_playlists'" value="audios_playlists">{_s_by_audios_playlists}</option>
+                                                <option n:attr="selected => ($_REQUEST['section'] ?? NULL) == 'docs'" value="docs">{_s_by_documents}</option>
                                             </select>
                                         </div>
                                         <button class="search_box_button">
@@ -234,12 +234,12 @@
                             <div id="_groupListPinnedGroups">
                                 <div n:if="$thisUser->getPinnedClubCount() > 0" class="menu_divider"></div>
 
-                                <a n:foreach="$thisUser->getPinnedClubs() as $club" href="{$club->getURL()}" class="link group_link">
-                                    {ovk_proc_strtr($club->getName(), 14)}
+                                <a n:foreach="$thisUser->getPinnedClubs() as $pinned_club" href="{$pinned_club->getURL()}" class="link group_link">
+                                    {ovk_proc_strtr($pinned_club->getName(), 14)}
 
-                                    <object type="internal/link" style="white-space: normal;" id="sug{$club->getId()}" n:if="$club->getSuggestedPostsCount($thisUser) > 0 && $club->getWallType() == 2">
-                                        <a href="/club{$club->getId()}/suggested" class="linkunderline">
-                                            (<b>{$club->getSuggestedPostsCount($thisUser)}</b>)
+                                    <object type="internal/link" style="white-space: normal;" id="sug{$pinned_club->getId()}" n:if="$pinned_club->getSuggestedPostsCount($thisUser) > 0 && $pinned_club->getWallType() == 2">
+                                        <a href="/club{$pinned_club->getId()}/suggested" class="linkunderline">
+                                            (<b>{$pinned_club->getSuggestedPostsCount($thisUser)}</b>)
                                         </a>
                                     </object>
                                 </a>
@@ -253,7 +253,7 @@
                                 <a href="{$newsLink}">{_news_more}</a>
                             </div>
 
-                            <div id="bday" n:if="$showBday">
+                            <div id="bday" n:if="$showBday ?? false">
                                 <b>{_bday_reminder}</b>
                                 <hr size="1">
                                 <text>
@@ -480,8 +480,8 @@
                 "at_search": {$atSearch ?? false},
                 "max_attachments": {\OPENVK_ROOT_CONF["openvk"]["preferences"]["wall"]["postSizes"]["maxAttachments"] ?? 10},
                 "max_filesize_mb": 100,
-                "current_id": {$thisUser ? $thisUser->getId() : 0},
-                "disable_ajax": {$disable_ajax ? $disable_ajax : 0},
+                "current_id": {($thisUser ?? false) ? $thisUser->getId() : 0},
+                "disable_ajax": {$disable_ajax ?? 0 },
                 "max_add_fields": {ovkGetQuirk("users.max-fields")},
                 "docs_max": {\OPENVK_ROOT_CONF["openvk"]["preferences"]["docs"]["maxSize"]},
                 "docs_allowed": {\OPENVK_ROOT_CONF["openvk"]["preferences"]["docs"]["allowedFormats"]},
diff --git a/Web/Presenters/templates/Admin/Logs.xml b/Web/Presenters/templates/Admin/Logs.xml
index ab5e62f51..c3192b128 100644
--- a/Web/Presenters/templates/Admin/Logs.xml
+++ b/Web/Presenters/templates/Admin/Logs.xml
@@ -19,22 +19,22 @@
     <form class="aui">
     <div>
         <select class="select medium-field" type="number" id="type" name="type" placeholder="{_logs_change_type}">
-            <option value="any" n:attr="selected => !$type">{_logs_anything}</option>
-            <option value="0" n:attr="selected => $type === 0">{_logs_adding}</option>
-            <option value="1" n:attr="selected => $type === 1">{_logs_editing}</option>
-            <option value="2" n:attr="selected => $type === 2">{_logs_removing}</option>
-            <option value="3" n:attr="selected => $type === 3">{_logs_restoring}</option>
+            <option value="any" n:attr="selected => !($type ?? NULL)">{_logs_anything}</option>
+            <option value="0" n:attr="selected => ($type ?? NULL) === 0">{_logs_adding}</option>
+            <option value="1" n:attr="selected => ($type ?? NULL) === 1">{_logs_editing}</option>
+            <option value="2" n:attr="selected => ($type ?? NULL) === 2">{_logs_removing}</option>
+            <option value="3" n:attr="selected => ($type ?? NULL) === 3">{_logs_restoring}</option>
         </select>
-        <input class="text medium-field" type="number" id="id" name="id" placeholder="{_logs_id_post}" n:attr="value => $id"/>
-        <input class="text medium-field" type="text" id="uid" name="uid" placeholder="{_logs_uuid_user}" n:attr="value => $user"/>
+        <input class="text medium-field" type="number" id="id" name="id" placeholder="{_logs_id_post}" n:attr="value => $id ?? NULL"/>
+        <input class="text medium-field" type="text" id="uid" name="uid" placeholder="{_logs_uuid_user}" n:attr="value => $user ?? NULL"/>
     </div>
     <div style="margin: 8px 0;" />
     <div>
         <select class="select medium-field" id="obj_type" name="obj_type" placeholder="{_logs_change_object}">
-            <option value="any" n:attr="selected => !$obj_type">{_logs_anything}</option>
-            <option n:foreach="$object_types as $type" n:attr="selected => $obj_type === $type">{$type}</option>
+            <option value="any" n:attr="selected => !($obj_type ?? NULL)">{_logs_anything}</option>
+            <option n:foreach="$object_types as $type" n:attr="selected => ($obj_type ?? NULL) === $type">{$type}</option>
         </select>
-        <input class="text medium-field" type="number" id="obj_id" name="obj_id" placeholder="{_logs_id_object}" n:attr="value => $obj_id"/>
+        <input class="text medium-field" type="number" id="obj_id" name="obj_id" placeholder="{_logs_id_object}" n:attr="value => $obj_id ?? NULL"/>
         <input type="submit" class="aui-button aui-button-primary medium-field" value="Поиск" style="width: 165px;"/>
     </div>
     </form>
@@ -84,7 +84,7 @@
     </table>
     <br/>
     <div align="right">
-        {var $isLast = ((20 * (($_GET['p'] ?? 1) - 1)) + $amount) < $count}
+        {var $isLast = ((20 * (($_GET['p'] ?? 1) - 1)) + $amount) < ($count ?? NULL)}
 
         <a n:if="($_GET['p'] ?? 1) > 1" class="aui-button" href="?p={($_GET['p'] ?? 1) - 1}">&laquo;</a>
         <a n:if="$isLast" class="aui-button" href="?p={($_GET['p'] ?? 1) + 1}">&raquo;</a>
diff --git a/Web/Presenters/templates/Audio/bigplayer.xml b/Web/Presenters/templates/Audio/bigplayer.xml
index d30b7a074..f160def2f 100644
--- a/Web/Presenters/templates/Audio/bigplayer.xml
+++ b/Web/Presenters/templates/Audio/bigplayer.xml
@@ -1,4 +1,4 @@
-<div n:class="bigPlayer, ctx_place, $tidy ? tidy">
+<div n:class="bigPlayer, ctx_place, $tidy ?? NULL ? tidy">
     <div class="bigPlayerWrapper">
         <div class="playButtons">
             <div class="playButton musicIcon" data-tip='simple' data-title="{_play_tip} [Space]"></div>
diff --git a/bootstrap.php b/bootstrap.php
index f9d609e29..659d4565d 100644
--- a/bootstrap.php
+++ b/bootstrap.php
@@ -392,15 +392,15 @@ function ovk_scheme(bool $with_slashes = false): string
 
 function check_copyright_link(string $link = ''): bool
 {
-    if (!str_contains($link, "https://") && !str_contains($link, "http://")) {
-        $link = "https://" . $link;
-    }
-
     # Existability
     if (is_null($link) || empty($link)) {
         throw new \InvalidArgumentException("Empty link");
     }
 
+    if (!str_contains($link, "https://") && !str_contains($link, "http://")) {
+        $link = "https://" . $link;
+    }
+
     # Length
     if (iconv_strlen($link) < 2 || iconv_strlen($link) > 400) {
         throw new \LengthException("Link is too long");
diff --git a/install/automated/docker/openvk.example.yml b/install/automated/docker/openvk.example.yml
index 32a1d350d..b5be94fe3 100644
--- a/install/automated/docker/openvk.example.yml
+++ b/install/automated/docker/openvk.example.yml
@@ -101,6 +101,8 @@ openvk:
             notification: false
             support: false
             topics: false
+            audios: false
+            documents: false
         ton:
             enabled: false
             address: "🅿"
diff --git a/openvk-example.yml b/openvk-example.yml
index c1b483ac9..d277b67d5 100644
--- a/openvk-example.yml
+++ b/openvk-example.yml
@@ -101,6 +101,8 @@ openvk:
             notification: false
             support: false
             topics: false
+            audios: false
+            documents: false
         ton:
             enabled: false
             address: "🅿"
diff --git a/phpstan.neon b/phpstan.neon
index 4831b3150..d708f5471 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,5 +1,5 @@
 parameters:
-    level: 0
+    level: 1
     paths:
         - CLI
         - ServiceAPI