MC Launcher cannot connect to network

Hello there,

I have had Minecraft on this MacBook Pro ever since I got the laptop in 2018. I have an Intel i7 3.1GHz, 16GB RAM. My MC Launcher just randomly stopped working a couple of months ago, and I cannot get it to work again. It shows an error message every time that I try to log in to my account. I have reinstalled, turned off firewall, etc. I have tried on a different device on a different network and it works just fine. Please help, I would appreciate any tips. I have attached pictures to show the issue. Thank you!