minor fix

app/Services/Registries/RegistryImportService.php

@@ -33,7 +33,7 @@ class RegistryImportService {
         $urlInfo = parse_url($url);
         if (empty($urlInfo['host'])) $url = str_replace('//', '/', "https://faufcc.ru/{$url}");
         $info = pathinfo($url);
-        if ($info['extension']) {
+        if ($info['extension'] ?? null) {
             $path = "public/documents/registries";
             $filename = $filename ? "{$filename}.{$info['extension']}" : $info['basename'];
             $path = $dir ? "{$path}/{$dir}/{$filename}" : "{$path}/{$filename}";