Error Pleks upstream sent too big header while reading response header from upstream plesk nginx
Debemos incluir en las directivas de Nginx dentro de nuestra suscripción de plesk client_header_buffer_size 32k;large_client_header_buffers 16 32k;proxy_buffering on;proxy_buffers 4 256k;proxy_buffer_size 256k;fastcgi_buffer_size 128k;fastcgi_buffers 16 128k; proxy_connect_timeout 1200s;proxy_send_timeout 1200s; fastcgi_send_timeout 1200s;fastcgi_read_timeout 1200s;