When I log in to a PrestaShop website, I get an error on a Plesk server. 502 Bad Gateway On checking error login for the site in folder /var/www/vhosts/domain.com/logs/proxy_error_log, I found the following error message proxy_error_log:2020/11/25 19:41:41 [error] 1809#0: *39664 upstream sent too big header while reading response header from upstream, client: 59.92.71.53, server: tulivesi.com, … Continue reading Nginx upstream sent too big header