diff --git a/src/Services/Tg/Hook/Dog.php b/src/Services/Tg/Hook/Dog.php
index 66e9ad562..479615c79 100644
--- a/src/Services/Tg/Hook/Dog.php
+++ b/src/Services/Tg/Hook/Dog.php
@@ -611,11 +611,11 @@ class Dog extends Mod\Base {
         }
         
         foreach ($this->aStrField as $sStrField) {
-            $aData[$sStrField] = $this->subStr($aData[$sStrField]);
+            $aData[$sStrField] = $this->subStr($aData[$sStrField] ?? '');
         }
 
         foreach ($this->aJsonField as $sJsonField) {
-            $aData[$sJsonField] = json_decode($aData[$sJsonField]);
+            $aData[$sJsonField] = json_decode($aData[$sJsonField] ?? '');
         }
         
         foreach ($this->aOutFormat as $sFormatField => $sFormatType) {