I’m getting a 502 error on all my sites after updating to 3.2.1. This is the error I keep getting: 2019/06/06 16:56:29 [error] 6#6: *11 upstream prematurely closed connection while reading response header from upstream, client: 192.168.75.1, server: .local, request: “GET / HTTP/1.1”, upstream: “http://192.168.75.100:4198/”, host: ".local"