diff --git a/config/app.php b/config/app.php
index 8faea7d..480c342 100644
--- a/config/app.php
+++ b/config/app.php
@@ -178,7 +178,6 @@ return [
      */
     'Error' => [
         'errorLevel' => E_ALL,
-        'exceptionRenderer' => ExceptionRenderer::class,
         'skipLog' => [],
         'log' => true,
         'trace' => true,
diff --git a/plugins/Tags/src/View/Helper/TagHelper.php b/plugins/Tags/src/View/Helper/TagHelper.php
index 405c513..7cb1411 100644
--- a/plugins/Tags/src/View/Helper/TagHelper.php
+++ b/plugins/Tags/src/View/Helper/TagHelper.php
@@ -106,7 +106,7 @@ class TagHelper extends Helper
             $deleteButton = $this->Bootstrap->button([
                 'size' => 'sm',
                 'icon' => 'times',
-                'class' => ['ms-1', 'border-0', "text-${textColour}"],
+                'class' => ['ms-1', 'border-0', "text-$textColour"],
                 'variant' => 'text',
                 'title' => __('Delete tag'),
                 'onclick' => sprintf('deleteTag(\'%s\', \'%s\', this)',
diff --git a/src/Command/ImporterCommand.php b/src/Command/ImporterCommand.php
index dee4e24..02c4164 100644
--- a/src/Command/ImporterCommand.php
+++ b/src/Command/ImporterCommand.php
@@ -136,7 +136,7 @@ class ImporterCommand extends Command
                 $entity = null;
                 if (isset($item[$primary_key])) {
                     $query = $table->find('all')
-                        ->where(["${primary_key}" => $item[$primary_key]]);
+                        ->where(["$primary_key" => $item[$primary_key]]);
                     $entity = $query->first();
                 }
                 if (is_null($entity)) {
diff --git a/src/Controller/Component/CRUDComponent.php b/src/Controller/Component/CRUDComponent.php
index d56609c..96855da 100644
--- a/src/Controller/Component/CRUDComponent.php
+++ b/src/Controller/Component/CRUDComponent.php
@@ -1465,7 +1465,7 @@ class CRUDComponent extends Component
     {
         $prefixedConditions = [];
         foreach ($conditions as $condField => $condValue) {
-            $prefixedConditions["${prefix}.${condField}"] = $condValue;
+            $prefixedConditions["$prefix.$condField"] = $condValue;
         }
         return $prefixedConditions;
     }
@@ -1589,13 +1589,13 @@ class CRUDComponent extends Component
                     [sprintf('%s.id = %s.%s', $this->Table->getAlias(), $associatedTable->getAlias(), $association->getForeignKey())]
                 )
                     ->where([
-                        ["${field} IS NOT" => NULL]
+                        ["$field IS NOT" => NULL]
                     ]);
             } else if ($associationType == 'manyToOne') {
                 $fieldToExtract = sprintf('%s.%s', Inflector::singularize(strtolower($model)), $subField);
                 $query = $this->Table->find()->contain($model);
             } else {
-                throw new Exception("Association ${associationType} not supported in CRUD Component");
+                throw new Exception("Association $associationType not supported in CRUD Component");
             }
         } else {
             $fieldToExtract = $field;
diff --git a/src/Controller/Component/RestResponseComponent.php b/src/Controller/Component/RestResponseComponent.php
index 8da9128..19a522b 100644
--- a/src/Controller/Component/RestResponseComponent.php
+++ b/src/Controller/Component/RestResponseComponent.php
@@ -390,7 +390,7 @@ class RestResponseComponent extends Component
         return '[]';
     }
 
-    public function saveFailResponse($controller, $action, $id = false, $validationErrors, $format = false)
+    public function saveFailResponse($controller, $action, $id, $validationErrors, $format = false)
     {
         $this->autoRender = false;
         $response = array();