502 Request Error after updating to 2.4.6

I’ve updated to 2.4.6 and now I can’t access my website. I’ve restarted the local site, went to VirtualBox and did the ACPI shutdown. I went to the logs and this is what it says : upstream prematurely closed connection while reading response header from upstream client: 192.168.95.1, server: divi9.local, request: “GET /favicon.ico HTTP/1.1”, upstream: “http://192.168.95.100:4000/favicon.ico”, host: “divi9.local”, referrer: “http://divi9.local/
2018/12/02 20:03:55 [error] 6#6: *5 upstream prematurely closed connection while reading response header from upstream, client: 172.18.0.2, server: divi9.local, request: “POST /wp-cron.php?doing_wp_cron=1543781035.1156671047210693359375 HTTP/1.1”, upstream: “http://192.168.95.100:4000/wp-cron.php?doing_wp_cron=1543781035.1156671047210693359375”, host: “divi9.local”, referrer: “http://divi9.local/wp-cron.php?doing_wp_cron=1543781035.1156671047210693359375