diff --git a/VKAPI/Handlers/Newsfeed.php b/VKAPI/Handlers/Newsfeed.php
index e5e687c7..52e7b5fa 100644
--- a/VKAPI/Handlers/Newsfeed.php
+++ b/VKAPI/Handlers/Newsfeed.php
@@ -51,8 +51,8 @@ final class Newsfeed extends VKAPIRequestHandler
     {
         $this->requireUser();
         
-        $queryBase = "FROM `posts` JOIN `profiles` ON `profiles`.`id` = ABS(`posts`.`wall`) LEFT JOIN `groups` ON GREATEST(`posts`.`wall`, 0) = 0 AND `groups`.`id` = ABS(`posts`.`wall`)";
-        $queryBase .= "WHERE (`profiles`.`profile_type` = 0 OR `profiles`.`first_name` IS NULL) AND (`groups`.`hide_from_global_feed` = 0 OR `groups`.`name` IS NULL) AND `posts`.`deleted` = 0";
+        $queryBase = "FROM `posts` LEFT JOIN `groups` ON GREATEST(`posts`.`wall`, 0) = 0 AND `groups`.`id` = ABS(`posts`.`wall`) LEFT JOIN `profiles` ON LEAST(`posts`.`wall`, 0) = 0 AND `profiles`.`id` = ABS(`posts`.`wall`)";
+        $queryBase .= "WHERE (`groups`.`hide_from_global_feed` = 0 OR `groups`.`name` IS NULL) AND (`profiles`.`profile_type` = 0 OR `profiles`.`first_name` IS NULL) AND `posts`.`deleted` = 0";
 
         if($this->getUser()->getNsfwTolerance() === User::NSFW_INTOLERANT)
             $queryBase .= " AND `nsfw` = 0";
diff --git a/VKAPI/Handlers/Polls.php b/VKAPI/Handlers/Polls.php
index f901ab77..87852dc0 100755
--- a/VKAPI/Handlers/Polls.php
+++ b/VKAPI/Handlers/Polls.php
@@ -35,7 +35,11 @@ final class Polls extends VKAPIRequestHandler
         foreach($poll->getUserVote($this->getUser()) as $vote)
             $userVote[] = $vote[0];
         
-        $ownerr = $poll->getAttachedPost()->getOwner() instanceof User ? $poll->getAttachedPost()->getOwner()->getId() : $poll->getAttachedPost()->getOwner()->getId() * -1;
+        $ownerr = 0;
+        if(!is_null($poll->getAttachedPost())) {
+            $ownerr = $poll->getAttachedPost()->getOwner() instanceof User ? $poll->getAttachedPost()->getOwner()->getId() : $poll->getAttachedPost()->getOwner()->getId() * -1;
+        }
+        
         $response = [
             "multiple"       => $poll->isMultipleChoice(),
             "end_date"       => $poll->endsAt() == NULL ? 0 : $poll->endsAt()->timestamp(),
@@ -45,7 +49,7 @@ final class Polls extends VKAPIRequestHandler
             "can_vote"       => $poll->canVote($this->getUser()),
             "can_report"     => false,
             "can_share"      => true,
-            "created"        => $poll->getAttachedPost()->getPublicationTime()->timestamp(),
+            "created"        => $poll->getAttachedPost() ? $poll->getAttachedPost()->getPublicationTime()->timestamp() : 0,
             "id"             => $poll->getId(),
             "owner_id"       => $ownerr,
             "question"       => $poll->getTitle(),
diff --git a/VKAPI/Handlers/Wall.php b/VKAPI/Handlers/Wall.php
index 956c8428..dd7f1717 100644
--- a/VKAPI/Handlers/Wall.php
+++ b/VKAPI/Handlers/Wall.php
@@ -879,7 +879,12 @@ final class Wall extends VKAPIRequestHandler
         foreach($attachment->getUserVote($user) as $vote)
             $userVote[] = $vote[0];
 
-        $ownerr = $attachment->getAttachedPost()->getOwner() instanceof User ? $attachment->getAttachedPost()->getOwner()->getId() : $attachment->getAttachedPost()->getOwner()->getId() * -1;
+        $ownerr = 0;
+
+        if(!is_null($attachment->getAttachedPost())) {
+            $ownerr = $attachment->getAttachedPost()->getOwner() instanceof User ? $attachment->getAttachedPost()->getOwner()->getId() : $attachment->getAttachedPost()->getOwner()->getId() * -1;
+        }
+        
         return [
             "type"  => "poll",
             "poll" => [
@@ -891,7 +896,7 @@ final class Wall extends VKAPIRequestHandler
                 "can_vote"       => $attachment->canVote($user),
                 "can_report"     => false,
                 "can_share"      => true,
-                "created"        => $attachment->getAttachedPost()->getPublicationTime()->timestamp(),
+                "created"        => $attachment->getAttachedPost() ? $attachment->getAttachedPost()->getPublicationTime()->timestamp() : 0,
                 "id"             => $attachment->getId(),
                 "owner_id"       => $ownerr,
                 "question"       => $attachment->getTitle(),
diff --git a/Web/Models/Entities/Poll.php b/Web/Models/Entities/Poll.php
index b8bf0855..f466ac67 100644
--- a/Web/Models/Entities/Poll.php
+++ b/Web/Models/Entities/Poll.php
@@ -300,11 +300,20 @@ class Poll extends Attachable
                 ["attachable_type" => static::class, 
                 "attachable_id"    => $this->getId()])->fetch();
 
-        return (new Posts)->get($post->target_id);
+        if(!is_null($post->target_id)) {
+            return (new Posts)->get($post->target_id);
+        } else {
+            return NULL;
+        }
     }
 
     function canBeViewedBy(?User $user = NULL): bool
     {
-        return $this->getAttachedPost()->canBeViewedBy($user);
+        if(!is_null($this->getAttachedPost())) {
+            return $this->getAttachedPost()->canBeViewedBy($user);
+        } else {
+            return true;
+        }
+        
     }
 }
diff --git a/Web/Presenters/WallPresenter.php b/Web/Presenters/WallPresenter.php
index 5ea1bf17..81149fb8 100644
--- a/Web/Presenters/WallPresenter.php
+++ b/Web/Presenters/WallPresenter.php
@@ -177,8 +177,8 @@ final class WallPresenter extends OpenVKPresenter
         $page  = (int) ($_GET["p"] ?? 1);
         $pPage = min((int) ($_GET["posts"] ?? OPENVK_DEFAULT_PER_PAGE), 50);
 
-        $queryBase = "FROM `posts` JOIN `profiles` ON `profiles`.`id` = ABS(`posts`.`wall`) LEFT JOIN `groups` ON GREATEST(`posts`.`wall`, 0) = 0 AND `groups`.`id` = ABS(`posts`.`wall`)";
-        $queryBase .= "WHERE (`profiles`.`profile_type` = 0 OR `profiles`.`first_name` IS NULL) AND (`groups`.`hide_from_global_feed` = 0 OR `groups`.`name` IS NULL) AND `posts`.`deleted` = 0";
+        $queryBase = "FROM `posts` LEFT JOIN `groups` ON GREATEST(`posts`.`wall`, 0) = 0 AND `groups`.`id` = ABS(`posts`.`wall`) LEFT JOIN `profiles` ON LEAST(`posts`.`wall`, 0) = 0 AND `profiles`.`id` = ABS(`posts`.`wall`)";
+        $queryBase .= "WHERE (`groups`.`hide_from_global_feed` = 0 OR `groups`.`name` IS NULL) AND (`profiles`.`profile_type` = 0 OR `profiles`.`first_name` IS NULL) AND `posts`.`deleted` = 0";
         
         if($this->user->identity->getNsfwTolerance() === User::NSFW_INTOLERANT)
             $queryBase .= " AND `nsfw` = 0";