HTTP 503 error on installing server

i am uploading NextCloud on a server but it shows the HTTP 503 error. I dont know what the exactly issue is on installing it on the server. What should i do ???

this is a typical server mis-configuration problem, see also and other results from Google.

Jep, to further help you, we need more information about your system (linux distribution, webserver+php incl. versions) and configuration files. Als provide webserver log file entries, if available.

A 503 Service Unavailable Error is an HTTP response status code indicating that your web server operates properly, but it can’t temporarily handle the request at the moment. This error happen for a wide variety of reasons. Normally, this error can be due to a temporary overloading or maintenance being performed on the server and it is resolved after a period of time or once another thread has been released by web-server application.

How to fix HTTP 503 errors

  • Reload (Refresh) the page
  • Restart Your Devices
  • Scan for Malware
  • Clear Temporary Files
  • Visiting the website later
  • Contact server admin