diff --git a/LibreNMS/Alert/Transport/Canopsis.php b/LibreNMS/Alert/Transport/Canopsis.php
index d65fb6266d..e3e7895460 100644
--- a/LibreNMS/Alert/Transport/Canopsis.php
+++ b/LibreNMS/Alert/Transport/Canopsis.php
@@ -3,6 +3,9 @@
 namespace LibreNMS\Alert\Transport;
 
 use LibreNMS\Alert\Transport;
+use PhpAmqpLib\Connection\AMQPStreamConnection;
+use PhpAmqpLib\Exchange\AMQPExchangeType;
+use PhpAmqpLib\Message\AMQPMessage;
 
 class Canopsis extends Transport
 {
@@ -30,12 +33,12 @@ class Canopsis extends Transport
         $exchange = 'canopsis.events';
 
         // Connection
-        $conn = new \PhpAmqpLib\Connection\AMQPConnection($host, $port, $user, $pass, $vhost);
+        $conn = new AMQPStreamConnection($host, $port, $user, $pass, $vhost);
         $ch = $conn->channel();
 
         // Declare exchange (if not exist)
         // exchange_declare($exchange, $type, $passive=false, $durable=false, $auto_delete=true, $internal=false, $nowait=false, $arguments=null, $ticket=null)
-        $ch->exchange_declare($exchange, 'topic', false, true, false);
+        $ch->exchange_declare($exchange, AMQPExchangeType::TOPIC, false, true, false);
 
         // Create Canopsis event, see: https://github.com/capensis/canopsis/wiki/Event-specification
         switch ($obj['severity']) {
@@ -66,6 +69,7 @@ class Canopsis extends Transport
         $msg_raw = json_encode($msg_body);
 
         // Build routing key
+        $msg_rk = '';
         if ($msg_body['source_type'] == 'resource') {
             $msg_rk = $msg_rk . '.' . $msg_body['resource'];
         } else {
@@ -73,7 +77,7 @@ class Canopsis extends Transport
         }
 
         // Publish Event
-        $msg = new \PhpAmqpLib\Message\AMQPMessage($msg_raw, ['content_type' => 'application/json', 'delivery_mode' => 2]);
+        $msg = new AMQPMessage($msg_raw, ['content_type' => 'application/json', 'delivery_mode' => 2]);
         $ch->basic_publish($msg, $exchange, $msg_rk);
 
         // Close connection
diff --git a/LibreNMS/Alert/Transport/Hipchat.php b/LibreNMS/Alert/Transport/Hipchat.php
index 58342ee24d..1a722017ee 100644
--- a/LibreNMS/Alert/Transport/Hipchat.php
+++ b/LibreNMS/Alert/Transport/Hipchat.php
@@ -50,9 +50,7 @@ class Hipchat extends Transport
         if ($version == 2) {
             $url .= '/' . urlencode($option['room_id']) . '/notification?auth_token=' . urlencode($option['auth_token']);
         }
-        foreach ($obj as $key => $value) {
-            $api = str_replace('%' . $key, $method == 'get' ? urlencode($value) : $value, $api);
-        }
+
         $curl = curl_init();
 
         if (empty($obj['msg'])) {
diff --git a/LibreNMS/Alerting/QueryBuilderParser.php b/LibreNMS/Alerting/QueryBuilderParser.php
index 2acc291a69..2011e37438 100644
--- a/LibreNMS/Alerting/QueryBuilderParser.php
+++ b/LibreNMS/Alerting/QueryBuilderParser.php
@@ -82,6 +82,7 @@ class QueryBuilderParser implements \JsonSerializable
 
     protected $builder;
     protected $schema;
+    private $tables;
 
     private function __construct(array $builder)
     {
diff --git a/LibreNMS/IRCBot.php b/LibreNMS/IRCBot.php
index a8dcec2469..ff17b01c4a 100644
--- a/LibreNMS/IRCBot.php
+++ b/LibreNMS/IRCBot.php
@@ -29,6 +29,10 @@ use Permissions;
 
 class IRCBot
 {
+    private $config;
+
+    private $user;
+
     private $last_activity = 0;
 
     private $data = '';
@@ -78,6 +82,14 @@ class IRCBot
 
     private $floodcount = 0;
 
+    private $max_retry = 5;
+
+    private $nickwait;
+
+    private $buff;
+
+    private $tokens;
+
     public function __construct()
     {
         $this->log('Setting up IRC-Bot..');
@@ -802,7 +814,7 @@ class IRCBot
 
         foreach ($tmp as $logline) {
             $response = $logline['datetime'] . ' ';
-            $response .= $this->_color($hostid['hostname'], null, null, 'bold') . ' ';
+            $response .= $this->_color($logline['hostname'], null, null, 'bold') . ' ';
             if ($this->config['irc_alert_utf8']) {
                 if (preg_match('/critical alert/', $logline['message'])) {
                     $response .= preg_replace('/critical alert/', $this->_color('critical alert', 'red'), $logline['message']) . ' ';
diff --git a/LibreNMS/Modules/OS.php b/LibreNMS/Modules/OS.php
index 64331a35af..33005c994f 100644
--- a/LibreNMS/Modules/OS.php
+++ b/LibreNMS/Modules/OS.php
@@ -72,7 +72,9 @@ class OS implements Module
             $deviceModel->hardware = ($hardware ?? $deviceModel->hardware) ?: null;
             $deviceModel->features = ($features ?? $deviceModel->features) ?: null;
             $deviceModel->serial = ($serial ?? $deviceModel->serial) ?: null;
+
             if (! empty($location)) { // legacy support, remove when no longer needed
+                /** @phpstan-ignore-next-line */
                 $deviceModel->setLocation($location);
                 optional($deviceModel->location)->save();
             }
diff --git a/app/Models/Notification.php b/app/Models/Notification.php
index 7299f01448..8919baca56 100644
--- a/app/Models/Notification.php
+++ b/app/Models/Notification.php
@@ -63,7 +63,7 @@ class Notification extends Model
             $read = new NotificationAttrib;
             $read->user_id = \Auth::user()->user_id;
             $read->key = $name;
-            $read->value = 1;
+            $read->value = '1';
             $this->attribs()->save($read);
 
             return true;