Remove the DNS Configuration from Mac

Click on System Preferences.
Then open Network.
Select your active network connection (e.g.: Ethernet or Wi-Fi)
Then, click Advanced.
Click DNS
Then, select the IP address from the list
Click the icon (-) Remove at the bottom of the DNS Servers panel.
Repeat the process if you have defined more than one DNS server address in the list.
Click Ok to finish the configuration. Your Mac will detect automatically the default DNS Servers.
Open our detection page and check that DNSProxy is no longer active on your computer.