diff --git a/templates/form/field/material/input/edit.php b/templates/form/field/material/input/edit.php
index 460a932..9dc5341 100644
--- a/templates/form/field/material/input/edit.php
+++ b/templates/form/field/material/input/edit.php
@@ -31,7 +31,7 @@ if($isDatepicker) {
     $arParams['ADD_CLASS'] .= ' datepicker-here';
 }
 $messageType = '';
-if(strlen($field->getMessage())) {
+if(mb_strlen($field->getMessage()??'')) {
     if (Tools::isSuccess($field->getMessageType())) {
         $messageType = 'success';
     } else {
@@ -41,7 +41,7 @@ if(strlen($field->getMessage())) {
 $messageTypeClass = $messageType?"kit-field--$messageType":'';
 ?>
 
-    <label class="kit-field kit-field--text<?=($field->isHidden()?' hidden':'')?> <?=$arParams['WRAP_CLASS']?><?=' ' .$messageTypeClass?>"<?php
+    <label class="kit-field kit-field--text<?=($field->isHidden()?' hidden':'')?> <?=$arParams['WRAP_CLASS']??''?><?=' ' .$messageTypeClass?>"<?php
     if(strlen($field->getId())){?> for="<?=$field->getId()?>"<?php
     }?>>
         <input<?php
@@ -56,7 +56,7 @@ $messageTypeClass = $messageType?"kit-field--$messageType":'';
         $attr = array_merge($attr, $field->getAttributes());
         unset($attr['label']);
         ?>
-                class="kit-field__input <?=$arParams['CLASS']?> <?=$arParams['ADD_CLASS']?><?=' ' .$messageTypeClass?>" <?php
+                class="kit-field__input <?=$arParams['CLASS']??''?> <?=$arParams['ADD_CLASS']??''?><?=' ' .$messageTypeClass?>" <?php
 
             echo TemplaterTools::getAttrByArray($attr);
             ?>><?php