diff --git a/README.md b/README.md
index 7caae35..2f4a61b 100644
--- a/README.md
+++ b/README.md
@@ -54,5 +54,5 @@ When submitting pull requests, it is extremely helpful to isolate the changes yo
 ## Problems with updates ##
 If You have questions regarding installation please look here at the top in the WIKI.
 
-The pdate of scssphp to version 1.11 is important for bootstrap 5. 
+The update of scssphp to version 1.11 is important for bootstrap 5. 
 Old bootstrap 3 - based themes had a small bug in variables.css which has been corrected.
diff --git a/include/tool/Recaptcha.php b/include/tool/Recaptcha.php
index 80c363b..188b69e 100644
--- a/include/tool/Recaptcha.php
+++ b/include/tool/Recaptcha.php
@@ -43,7 +43,7 @@ namespace gp\tool{
 		public static function GetForm($theme='light', $size='', $lang=''){
 			global $config;
 			$custom_size	= !empty($size) ? ' data-size="' . htmlspecialchars($size) .'"' : ''; // conpact, normal
-			$custom_lang	= !empty($lang) || $lang != 'inherit' ? '?hl='. htmlspecialchars($lang) : '';
+			$custom_lang	= !empty($lang) || $lang != 'inherit' ? '?hl='. htmlspecialchars($lang ?? "") : '';
 			$html = '';
 			if( self::hasRecaptcha() ){
 				includeFile('thirdparty/recaptcha/autoload.php');