Fix: fatal error if the Astra_Ext_White_Label_Markup::get_whitelabel_string() method is not accessible from Astra Pro

Author: Nikschavan

classes/class-typekit-fonts-white-label.php

@@ -117,7 +117,7 @@ function plugins_page( $plugins ) {
 		 */
 		function white_label_custom_typekit_fonts_title( $title ) {
 
-			if ( is_callable( 'Astra_Ext_White_Label_Markup::get_whitelabel_string', true ) ) {
+			if ( is_callable( 'Astra_Ext_White_Label_Markup::get_whitelabel_string' ) ) {
 				$name = Astra_Ext_White_Label_Markup::get_whitelabel_string( 'custom-typekit-fonts', 'name' );
 				if ( ! empty( $name ) ) {
 					$title = $name;