If your domain is registered with Locaweb, you can access your DNS Zone from your Domain Registration → Administer → Change DNS zone section.
You can find detailed tutorials on creating, editing, and deleting DNS records at Locaweb here: How to access the Domain Name System DNS zone.
Hostinger default DNS records:
If you face any difficulties while managing DNS Zone at your domain provider, it’s best to contact Locaweb directly. Alternatively, you can transfer your domain to Hostinger so your hosting and domain will be managed from one place 😊