After changing nameservers or DNS records, your device may still use an old IP from cache. Clear DNS cache on your computer to see changes faster (without waiting for browser cache).
Use dig/nslookup to confirm which DNS records are visible on the Internet, whether your changes propagated, and what nameserver is answering.
How to transfer a domain away from GARMTECH: get the EPP/Auth code, unlock the domain, and start the transfer at the new registrar.
Update registrant/admin/tech WHOIS contacts for domains managed in My.GARMTECH, and learn what confirmations may be required after changes.