Gmail Email problem configuration

Hello. So, I’m new to Ghost. Just recently got it set up using the DO OCA. It was working fine except email. I found this and edited my config.*.json file. I wasn’t thinking and I tried to restart Ghost from root. :man_facepalming: Obviously, it told me I could not do that, but it still executed. Now I’m getting a 502 error. Any help on fixing it?

Cheers.