Fix messages.po issue

mod/repair_ostatus.php

@@ -43,7 +43,7 @@ function repair_ostatus_content(App $a) {
 	$total = DBA::count('contact', $condition);
 
 	if (!$total) {
-		return ($o . DI::l10n()->t('Error'));
+		return ($o . DI::l10n()->tt('Error', 'Errors', 1));
 	}
 
 	$contact = Contact::selectToArray(['url'], $condition, ['order' => ['url'], 'limit' => [$counter++, 1]]);

src/Module/Debug/ActivityPubConversion.php

@@ -126,7 +126,7 @@ class ActivityPubConversion extends BaseModule
 				];
 			} catch (\Throwable $e) {
 				$results[] = [
-					'title'   => DI::l10n()->t('Error'),
+					'title'   => DI::l10n()->tt('Error', 'Errors', 1),
 					'content' => $e->getMessage(),
 				];
 			}

src/Module/Debug/Babel.php

@@ -290,7 +290,7 @@ class Babel extends BaseModule
 						];
 					} else {
 						$results[] = [
-							'title'   => DI::l10n()->t('Error'),
+							'title'   => DI::l10n()->tt('Error', 'Errors', 1),
 							'content' => DI::l10n()->t('Twitter addon is absent from the addon/ folder.'),
 						];
 					}