diff --git a/migrations/2021_06_15_115412_create_rule_table.php b/migrations/2021_06_15_115412_create_rule_table.php
index b228498..91ba856 100644
--- a/migrations/2021_06_15_115412_create_rule_table.php
+++ b/migrations/2021_06_15_115412_create_rule_table.php
@@ -7,6 +7,6 @@
   $table->increments('id');
   $table->integer('rule_type');
   $table->string('name');
-  $table->string('value');
+  $table->text('value');
   $table->boolean('active');
 });
diff --git a/src/EmailCustomValidator.php b/src/EmailCustomValidator.php
index f8a787e..d0724b3 100644
--- a/src/EmailCustomValidator.php
+++ b/src/EmailCustomValidator.php
@@ -65,13 +65,13 @@ public function validate(string $email)
 
     private function raiseBlacklistException()
     {
-        $message = $this->settings->get('nyu8-email-filter.custom_failure_message', $this->translator->trans('nyu8-email-filter.forum.blacklist_exception'));
+        $message = $this->settings->get('nyu8-email-filter.custom_failure_message', $this->translator->trans('nyu8-email-filter.forum.blacklist_exception')) ?: $this->translator->trans('nyu8-email-filter.forum.blacklist_exception');
         throw new ValidationException([$message]);
     }
 
     private function raiseWhitelistException()
     {
-        $message = $this->settings->get('nyu8-email-filter.custom_failure_message', $this->translator->trans('nyu8-email-filter.forum.whitelist_exception'));
+        $message = $this->settings->get('nyu8-email-filter.custom_failure_message', $this->translator->trans('nyu8-email-filter.forum.whitelist_exception')) ?: $this->translator->trans('nyu8-email-filter.forum.whitelist_exception');
         throw new ValidationException([$message]);
     }