Open emr dont start after install in plesk

Situation
after the installation open emr dont start…
in browser i am getting the error 502 Bad Gateway
nginx

the installation finished with no problems
the installation made in plesk panel (version 17.8.11 Update #21
server in nginx
in log file i am geting this error message:
|21863#0: *21924791 recv() failed (104: Connection reset by peer) while reading response header from upstream||||nginx error
OpenEMR Version
I’m using OpenEMR version 5.01

Browser:
I’m using: chrome, latest (v 69)

Operating System
I’m using: windows 10

Logs
Did you check the logs? Was there anything pertinent in them? Paste them here (surround with three backticks (```) for readability