Service Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Additionally, a 503 Service Unavailable error was encountered while trying to use an ErrorDocument to handle the request.
Upgrading ONLY dir, I got this error:
This is a GitHub Issue
repo:Piwigo
owner:Piwigo
Title : Upgrading ONLY dir, I got this error:
Issue date:

--- start body ---
Service Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Additionally, a 503 Service Unavailable error was encountered while trying to use an ErrorDocument to handle the request.
--- end body ---
