diff --git a/Admin/Install/db.json b/Admin/Install/db.json
index 8c9c4a4..0e457d7 100755
--- a/Admin/Install/db.json
+++ b/Admin/Install/db.json
@@ -28,13 +28,13 @@
             },
             "itemmgmt_item_salesprice": {
                 "name": "itemmgmt_item_salesprice",
-                "type": "INT",
+                "type": "BIGINT",
                 "default": null,
                 "null": true
             },
             "itemmgmt_item_purchaseprice": {
                 "name": "itemmgmt_item_purchaseprice",
-                "type": "INT",
+                "type": "BIGINT",
                 "default": null,
                 "null": true
             }
diff --git a/Models/ItemAttribute.php b/Models/ItemAttribute.php
index 365581f..530e7bd 100755
--- a/Models/ItemAttribute.php
+++ b/Models/ItemAttribute.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\ItemManagement\Models;
 
-use phpOMS\Contract\ArrayableInterface;
 
 /**
  * Item class.
@@ -24,7 +23,7 @@ use phpOMS\Contract\ArrayableInterface;
  * @link    https://karaka.app
  * @since   1.0.0
  */
-class ItemAttribute implements \JsonSerializable, ArrayableInterface
+class ItemAttribute implements \JsonSerializable
 {
     /**
      * Id.
diff --git a/Models/ItemAttributeType.php b/Models/ItemAttributeType.php
index 992b754..2440436 100755
--- a/Models/ItemAttributeType.php
+++ b/Models/ItemAttributeType.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\ItemManagement\Models;
 
-use phpOMS\Contract\ArrayableInterface;
 use phpOMS\Localization\ISO639x1Enum;
 
 /**
@@ -25,7 +24,7 @@ use phpOMS\Localization\ISO639x1Enum;
  * @link    https://karaka.app
  * @since   1.0.0
  */
-class ItemAttributeType implements \JsonSerializable, ArrayableInterface
+class ItemAttributeType implements \JsonSerializable
 {
     /**
      * Id
diff --git a/Models/ItemAttributeTypeL11n.php b/Models/ItemAttributeTypeL11n.php
index 27f586f..99f2b57 100755
--- a/Models/ItemAttributeTypeL11n.php
+++ b/Models/ItemAttributeTypeL11n.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\ItemManagement\Models;
 
-use phpOMS\Contract\ArrayableInterface;
 use phpOMS\Localization\ISO639x1Enum;
 
 /**
@@ -25,7 +24,7 @@ use phpOMS\Localization\ISO639x1Enum;
  * @link    https://karaka.app
  * @since   1.0.0
  */
-class ItemAttributeTypeL11n implements \JsonSerializable, ArrayableInterface
+class ItemAttributeTypeL11n implements \JsonSerializable
 {
     /**
      * ID.
diff --git a/Models/ItemAttributeValue.php b/Models/ItemAttributeValue.php
index 6a00169..23da291 100755
--- a/Models/ItemAttributeValue.php
+++ b/Models/ItemAttributeValue.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\ItemManagement\Models;
 
-use phpOMS\Contract\ArrayableInterface;
 use phpOMS\Localization\ISO3166TwoEnum;
 use phpOMS\Localization\ISO639x1Enum;
 
@@ -28,7 +27,7 @@ use phpOMS\Localization\ISO639x1Enum;
  * @link    https://karaka.app
  * @since   1.0.0
  */
-class ItemAttributeValue implements \JsonSerializable, ArrayableInterface
+class ItemAttributeValue implements \JsonSerializable
 {
     /**
      * Id
diff --git a/Models/ItemL11n.php b/Models/ItemL11n.php
index b290f0c..253e690 100755
--- a/Models/ItemL11n.php
+++ b/Models/ItemL11n.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\ItemManagement\Models;
 
-use phpOMS\Contract\ArrayableInterface;
 use phpOMS\Localization\ISO639x1Enum;
 
 /**
@@ -25,7 +24,7 @@ use phpOMS\Localization\ISO639x1Enum;
  * @link    https://karaka.app
  * @since   1.0.0
  */
-class ItemL11n implements \JsonSerializable, ArrayableInterface
+class ItemL11n implements \JsonSerializable
 {
     /**
      * Article ID.
diff --git a/Models/ItemL11nType.php b/Models/ItemL11nType.php
index f9f0828..8ff9703 100755
--- a/Models/ItemL11nType.php
+++ b/Models/ItemL11nType.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\ItemManagement\Models;
 
-use phpOMS\Contract\ArrayableInterface;
 
 /**
  * Item class.
@@ -24,7 +23,7 @@ use phpOMS\Contract\ArrayableInterface;
  * @link    https://karaka.app
  * @since   1.0.0
  */
-class ItemL11nType implements \JsonSerializable, ArrayableInterface
+class ItemL11nType implements \JsonSerializable
 {
     /**
      * Article ID.