Dear Sir;
My name's Javier Aguilar, I'm Systems & Telecom. Engineer with +20 years experience in Systems Administration, IT projects management, server management, DataCenter management, Help Desk, Networking engineering design, deployment and troubleshooting, LAN/WAN/SD-WAN/MAN management, and other IT topics.
I check all details about your project, I'm not a React developer (as indicate others freelancers), I'm expert on Linux/Unix/Windows servers management. I can fix your issue with your sub-domain server.
I'm ready to start with your services, but if you like contact me by chat before making a decision to know details about your issue. I'm online right now.
Best regards,
Javier Aguilar
IT Business Corp.
Montevideo, Uruguay, South America (GMT-3:00).