diff --git a/core/dbengine.php b/core/dbengine.php
index d494d091..c974ab34 100644
--- a/core/dbengine.php
+++ b/core/dbengine.php
@@ -66,7 +66,7 @@ class MySQL extends DBEngine
     public function set_timeout(PDO $db, int $time): void
     {
         // These only apply to read-only queries, which appears to be the best we can to mysql-wise
-        $db->exec("SET SESSION MAX_EXECUTION_TIME=".$time.";");
+        // $db->exec("SET SESSION MAX_EXECUTION_TIME=".$time.";");
     }
 }
 
diff --git a/core/util.php b/core/util.php
index 83b2be64..97bd3a74 100644
--- a/core/util.php
+++ b/core/util.php
@@ -768,14 +768,6 @@ function create_tables(Database $db)
 		    <p>{$e->getMessage()}</p>",
             3
         );
-    } catch (Exception $e) {
-        throw new InstallerException(
-            "Unknown Error:",
-            "<p>An unknown error occurred while trying to insert data into the database.</p>
-		    <p>Please check the server log files for more information.</p>
-		    <p>{$e->getMessage()}</p>",
-            4
-        );
     }
 }
 
diff --git a/ext/image_hash_ban/test.php b/ext/image_hash_ban/test.php
index 3381a618..54c9110f 100644
--- a/ext/image_hash_ban/test.php
+++ b/ext/image_hash_ban/test.php
@@ -1,10 +1,11 @@
 <?php declare(strict_types=1);
 class ImageBanTest extends ShimmiePHPUnitTestCase
 {
+    private $hash = "feb01bab5698a11dd87416724c7a89e3";
+
     public function testBan()
     {
         $this->log_in_as_admin();
-        $hash = "feb01bab5698a11dd87416724c7a89e3";
 
         // Post image
         $image_id = $this->post_image("tests/pbx_screenshot.jpg", "pbx");
@@ -12,8 +13,8 @@ class ImageBanTest extends ShimmiePHPUnitTestCase
         $this->assertEquals(200, $page->code);
 
         // Ban & delete
-        send_event(new AddImageHashBanEvent($hash, "test hash ban"));
-        send_event(new ImageDeletionEvent(Image::by_id($image_id)));
+        send_event(new AddImageHashBanEvent($this->hash, "test hash ban"));
+        send_event(new ImageDeletionEvent(Image::by_id($image_id), true));
 
         // Check deleted
         $page = $this->get_page("post/view/$image_id");
@@ -28,11 +29,16 @@ class ImageBanTest extends ShimmiePHPUnitTestCase
         }
 
         // Remove ban
-        send_event(new RemoveImageHashBanEvent($hash));
+        send_event(new RemoveImageHashBanEvent($this->hash));
 
         // Can repost
         $image_id = $this->post_image("tests/pbx_screenshot.jpg", "pbx");
         $page = $this->get_page("post/view/$image_id");
         $this->assertEquals(200, $page->code);
     }
+
+    public function onNotSuccessfulTest(\Throwable $t): void {
+        send_event(new RemoveImageHashBanEvent($this->hash));
+        parent::onNotSuccessfulTest($t); // TODO: Change the autogenerated stub
+    }
 }
diff --git a/ext/ipban/test.php b/ext/ipban/test.php
index 813a32ac..624a5810 100644
--- a/ext/ipban/test.php
+++ b/ext/ipban/test.php
@@ -26,7 +26,7 @@ class IPBanTest extends ShimmiePHPUnitTestCase
             '42.42.42.42',
             'block',
             'unit testing',
-            '2099-01-01'
+            '2030-01-01'
         ));
 
         // Check added
diff --git a/ext/relationships/main.php b/ext/relationships/main.php
index 8d18657e..ecd7d72b 100644
--- a/ext/relationships/main.php
+++ b/ext/relationships/main.php
@@ -193,12 +193,14 @@ class Relationships extends Extension
         //	   WHERE id = :pid
         // ", ["pid"=>$parentID]);
 
+        $children = $database->get_one(
+            "SELECT COUNT(*) FROM images WHERE parent_id=:pid",
+            ["pid"=>$parent_id]
+        );
         $database->execute(
             "UPDATE images
-            SET has_children = EXISTS (
-                SELECT 1 FROM images WHERE parent_id = :pid
-            ) WHERE id = :pid",
-            ["pid"=>$parent_id]
+            SET has_children = :has_children WHERE id = :pid",
+            ["has_children"=>$database->scoresql_value_prepare($children>0), "pid"=>$parent_id]
         );
     }
 }
diff --git a/ext/relationships/test.php b/ext/relationships/test.php
index 730eefad..5ce7fced 100644
--- a/ext/relationships/test.php
+++ b/ext/relationships/test.php
@@ -82,7 +82,10 @@ class RelationshipsTest extends ShimmiePHPUnitTestCase
         [$image_1, $image_2, $image_3] = $imgs;
 
         global $database;
-        $database->execute("UPDATE images SET parent_id=NULL, has_children=:false", ["false"=>false]);
+        $database->execute(
+            "UPDATE images SET parent_id=NULL, has_children=:false",
+            ["false"=>$database->scoresql_value_prepare(false)]
+        );
         // FIXME: send_event(new ImageRelationshipSetEvent($image_2->id, null));
 
         // refresh data from database
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 8a6dc3e3..24bba49a 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 chdir(dirname(dirname(__FILE__)));
 require_once "vendor/autoload.php";
 require_once "tests/defines.php";
@@ -67,7 +67,7 @@ abstract class ShimmiePHPUnitTestCase extends \PHPUnit\Framework\TestCase
             self::log_out();
 
             foreach ($database->get_col("SELECT id FROM images") as $image_id) {
-                send_event(new ImageDeletionEvent(Image::by_id($image_id)));
+                send_event(new ImageDeletionEvent(Image::by_id((int)$image_id), true));
             }
         }