I restored a 2.3.3 backup. Did php bin/ magento cache:clean and flush. Still got message:
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.
How do I fix this? Thanks for your attention.
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I see no .maintenance.flag in /public_html/var. I did grep -ri and it is referenced in CHANGELOG.md.
I have cleared cache many times. 503 error still shows.
I also ran these commands, 503 error still shows