Error 500 : upstream sent too big header while reading response header from upstream

Hello,

A error 500 occur on one my site in developement:

2022/09/17 22:22:38 [error] 17740#17740: *203462 upstream sent too big header while reading response header from upstream, client: 91.25.36.145, server: devsite.com, request: "GET /node/470/layout HTTP/2.0", upstream: "https://161.152.206.14:8443/node/470/layout", host: "www.devsite.com", referrer: "https://www.devsite.com/blog"
2022/09/17 22:22:48 [error] 17740#17740: *203462 upstream sent too big header while reading response header from upstream, client: 91.25.36.145, server: devsite.com, request: "GET /node/470/layout HTTP/2.0", upstream: "https://161.152.206.14:8443/node/470/layout", host: "www.devsite.com", referrer: "https://www.devsite.com/blog"
2022/09/17 22:30:20 [error] 17740#17740: *203537 upstream sent too big header while reading response header from upstream, client: 91.25.36.145, server: devsite.com, request: "GET /node/470/layout HTTP/2.0", upstream: "https://161.152.206.14:8443/node/470/layout", host: "www.devsite.com", referrer: "https://www.devsite.com/blog"
2022/09/17 22:30:23 [error] 17740#17740: *203549 upstream sent too big header while reading response header from upstream, client: 91.25.36.145, server: devsite.com, request: "GET /node/470/layout HTTP/2.0", upstream: "https://161.152.206.14:8443/node/470/layout", host: "www.devsite.com", referrer: "https://www.devsite.com/blog"
2022/09/17 22:38:47 [error] 17740#17740: *203619 upstream sent too big header while reading response header from upstream, client: 91.25.36.145, server: devsite.com, request: "GET /node/470/layout HTTP/2.0", upstream: "https://161.152.206.14:8443/node/470/layout", host: "www.devsite.com", referrer: "https://www.devsite.com/blog"

I suppose I should edit one file, /etc/nginx/nginx.conf ? Could you confirm, please?

I have notice that the file is modified this Sep 9. The changes I had made or should made now is not perennial?

Thanks.

//EDIT : apache2+ ngnix

just google it, will tell you to increase buffer size.

I add these lines : Upstream sent too big header while reading response header from upstream - #4 by eris
I had to comment the first proxy_buffers line on the top of ngnix.conf