diff --git a/phpBB/includes/acp/acp_extensions.php b/phpBB/includes/acp/acp_extensions.php
index c38c492c1f..164e5872bb 100644
--- a/phpBB/includes/acp/acp_extensions.php
+++ b/phpBB/includes/acp/acp_extensions.php
@@ -163,7 +163,7 @@ class acp_extensions
 				catch (\phpbb\extension\exception $e)
 				{
 					$message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
-					trigger_error($message, E_USER_WARNING);
+					trigger_error($message . adm_back_link($this->u_action), E_USER_WARNING);
 				}
 
 				$extension = $phpbb_extension_manager->get_extension($ext_name);
@@ -193,7 +193,8 @@ class acp_extensions
 				}
 				catch (\phpbb\extension\exception $e)
 				{
-					trigger_error($e . adm_back_link($this->u_action), E_USER_WARNING);
+					$message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
+					trigger_error($message . adm_back_link($this->u_action), E_USER_WARNING);
 				}
 
 				$extension = $phpbb_extension_manager->get_extension($ext_name);
diff --git a/phpBB/phpbb/extension/metadata_manager.php b/phpBB/phpbb/extension/metadata_manager.php
index 3dc6cdaee6..6fc6dc9891 100644
--- a/phpBB/phpbb/extension/metadata_manager.php
+++ b/phpBB/phpbb/extension/metadata_manager.php
@@ -295,7 +295,7 @@ class metadata_manager
 	{
 		if (!isset($this->metadata['extra']['soft-require']['phpbb/phpbb']))
 		{
-			throw new \phpbb\extension\exception('META_FIELD_NOT_SET', 'soft-require');
+			throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array('soft-require'));
 		}
 
 		return true;
@@ -311,7 +311,7 @@ class metadata_manager
 	{
 		if (!isset($this->metadata['require']['php']))
 		{
-			throw new \phpbb\extension\exception('META_FIELD_NOT_SET', 'require php');
+			throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array('require php'));
 		}
 
 		return true;