Fix Captive Portal Redirect from ".com" to ".net"

I need an experienced Linux/PHP/Apache network engineer to troubleshoot and fix a captive portal running on Ubuntu/Linux. Issue: - My captive portal was originally configured with hotspot.inetwall.com... (Budget: ₹1500 - ₹12500 INR, Jobs: Apache, DNS, Linux, MySQL, PHP, System Administration, Troubleshooting, Ubuntu)