diff --git a/code/SpamProtecterManager.php b/code/SpamProtecterManager.php
index 49d5988..9338b1b 100644
--- a/code/SpamProtecterManager.php
+++ b/code/SpamProtecterManager.php
@@ -27,14 +27,23 @@ class SpamProtecterManager {
 	 * 					and a string of field names (seperated by comma) as a value.
 	 *                 	The naming of the fields is based on the implementation of the subclass of SpamProtecterField.
 	 * 					*** Most of the web service doesn't require this.   
-	 * @return 	SpamProtector 	object or return null if the spamprotecter class is not found 
-	 *							or spamprotecterfield creation fails. 					
+	 * @return 	SpamProtector 	object on success or null if the spamprotecter class is not found 
+	 *							also null if spamprotecterfield creation fails. 					
 	 */
 	static function update_form($form, $before=null, $callbackObject=null, $fieldsToSpamServiceMapping=null) {
 		if (!class_exists(self::$spam_protecter)) return null;
 		
 		$protecter = new self::$spam_protecter();
-		$check = $protecter->updateForm($form, $before, $callbackObject, $fieldsToSpamServiceMapping);
+		try {
+			$check = $protecter->updateForm($form, $before, $callbackObject, $fieldsToSpamServiceMapping);
+		}
+		catch (Exception $e) {
+			$form->setMessage(
+				_t("SpamProtection.SPAMSPECTIONFAILED", self::$spam_protecter . " failed."),
+				"warning"
+				);
+			return null;
+		}
 		
 		if (!$check) return null;