diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index f71343a..a5f2687 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -55,7 +55,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -63,7 +63,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiInvestmentCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiInvestmentCreate(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateInvestmentCreate($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -227,7 +227,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -235,7 +235,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiMediaAddToInvestment(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiMediaAddToInvestment(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateMediaAddToInvestment($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -409,7 +409,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -417,7 +417,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiInvestmentOptionCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiInvestmentOptionCreate(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateInvestmentOptionCreate($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -534,7 +534,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -542,7 +542,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiAmountTypeCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiAmountTypeCreate(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateAmountTypeCreate($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -676,7 +676,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -684,7 +684,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiMediaAddToInvestmentObject(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiMediaAddToInvestmentObject(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateMediaAddToInvestmentObject($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -845,7 +845,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -853,7 +853,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiAmountTypeL11nCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiAmountTypeL11nCreate(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateAmountTypeL11nCreate($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -914,7 +914,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -922,7 +922,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiNoteCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiNoteCreate(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         if (!empty($val = $this->validateNoteCreate($request))) {
             $response->header->status = RequestStatusCode::R_400;
@@ -972,7 +972,7 @@ final class ApiController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return void
      *
@@ -980,7 +980,7 @@ final class ApiController extends Controller
      *
      * @since 1.0.0
      */
-    public function apiNoteEdit(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
+    public function apiNoteEdit(RequestAbstract $request, ResponseAbstract $response, array $data = []) : void
     {
         $this->app->moduleManager->get('Editor', 'Api')->apiEditorUpdate($request, $response, $data);
 
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index e209ead..65bd0fd 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -35,7 +35,7 @@ final class BackendController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return RenderableInterface
      *
@@ -63,7 +63,7 @@ final class BackendController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return RenderableInterface
      *
@@ -84,7 +84,7 @@ final class BackendController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return RenderableInterface
      *