diff --git a/inc/form.class.php b/inc/form.class.php
index 0750d6eec..ef1bfafc0 100644
--- a/inc/form.class.php
+++ b/inc/form.class.php
@@ -1896,7 +1896,7 @@ public static function import(PluginFormcreatorLinker $linker, $input = [], $con
       global $DB;
 
       if (!isset($input['uuid']) && !isset($input['id'])) {
-         throw new ImportFailureException('');
+         throw new ImportFailureException('UUID or ID is mandatory');
       }
 
       $formFk = PluginFormcreatorForm::getForeignKeyField();
diff --git a/inc/question.class.php b/inc/question.class.php
index dd8c2590e..90a125d1e 100644
--- a/inc/question.class.php
+++ b/inc/question.class.php
@@ -918,9 +918,6 @@ public static function import(PluginFormcreatorLinker $linker, $input = [], $con
       if (isset($input['_parameters'])) {
          $parameters = $field->getParameters();
          foreach ($parameters as $fieldName => $parameter) {
-            if (false === ($input['_parameters'][$input['fieldtype']][$fieldName])) {
-               continue;
-            }
             $parameter::import($linker, $input['_parameters'][$input['fieldtype']][$fieldName], $itemId);
          }
       }
diff --git a/inc/questionregex.class.php b/inc/questionregex.class.php
index 52447d867..49a46ecb5 100644
--- a/inc/questionregex.class.php
+++ b/inc/questionregex.class.php
@@ -120,7 +120,7 @@ public static function import(PluginFormcreatorLinker $linker, $input = [], $con
       global $DB;
 
       if (!isset($input['uuid']) && !isset($input['id'])) {
-         throw new ImportFailureException('');
+         throw new ImportFailureException('UUID or ID is mandatory');
       }
 
       $questionFk = PluginFormcreatorQuestion::getForeignKeyField();