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Issue I can't access the plesk panel and all sites returning Nginx 502 Bad Gateaway error after updated some components

Yilmaz Sarac

New Pleskian
Server operating system version
Ubuntu 18.04
Plesk version and microupdate number
not sure must be latest
Hello,
I'm using Plesk on digital ocean. yesterday i updated plesk and i increased the ram and cpu of my server. I can't access the plesk panel right now. (a blank page) and also my sites are not working. It gives 502 Bad Gateway error. The command line is also inaccessible. I can't do anything but restart the server, what can I do? https://y.sarac.digital:8443
 
I see Plesk login page now.
Looks like all works fine now.
 
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