Theta Edge Node: unable to verify the first certificate

So, on one of my machine, whenever I'm getting a new job it always fail with the same error, "unable to verify the first certificate". [https://i.imgur.com/qL4KQTR.png](https://i.imgur.com/qL4KQTR.png) I tried reinstalling Edge Node but it doesn't fix the problem. Anyone have an idea on how to fix this? Thanks.