nignx

Screenshot Attached, every time install magneto im getting this error, i checked all KB here not found my issue listed anywhere. Advice me please to solve this issue. Server Error 502 Bad Gateway

Hello together, I tried to run Rainloop Webmail in a docker image on a subdir (example.com/sub). Whenever I want to enter this page I get a 404 Error. Did I miss something out? Second small question: If I place the container on the main directory and let "let's encrypt" create SSL Certs it...