A selfhosted instance just got unreachable [Bug] SSL_connect: error:0A000086:SSL routines::certificate verify failed (OpenSSL::SSL::Error)

[Shahin-rmz]

Describe the bug
I have an instance on RPi4 it worked until RPI got turned off. now I get SSL issue, and I can not open any video, and also get Error 520 from my global URL. with local IP I can reach my instance

Steps to Reproduce

Logs
Title: SSL_connect: error:0A000086:SSL routines::certificate verify failed (OpenSSL::SSL::Error)
Date: 2024-08-24T22:52:03Z
Route: /watch?v=F0dJBrFyID8
Version: 2024.04.27-eda7444 @ master

Backtrace

SSL_connect: error:0A000086:SSL routines::certificate verify failed (OpenSSL::SSL::Error)
  from /usr/lib/crystal/core/socket/addrinfo.cr:74:17 in 'io'
  from /usr/lib/crystal/core/http/request.cr:121:3 in 'send_request'
  from /usr/lib/crystal/core/http/client.cr:663:37 in '_post_json'
  from /usr/lib/crystal/core/hash.cr:1185:13 in 'extract_video_info'
  from /usr/lib/crystal/core/hash.cr:1185:13 in 'fetch_video'
  from src/invidious/videos.cr:383:13 in 'get_video:region'
  from src/invidious/routes/watch.cr:55:15 in 'handle'
  from lib/kemal/src/kemal/route.cr:13:9 in '->'
  from lib/kemal/src/kemal/config.cr:92:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:32:7 in 'call_next'
  from lib/kemal/src/kemal/filter_handler.cr:21:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:32:7 in 'call_next'
  from src/invidious/helpers/handlers.cr:94:12 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:32:7 in 'call_next'
  from src/ext/kemal_static_file_handler.cr:106:14 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/handler.cr:30:7 in 'call'
  from /usr/lib/crystal/core/http/server/request_processor.cr:51:11 in 'handle_client'
  from /usr/lib/crystal/core/fiber.cr:146:11 in 'run'
  from ???

Screenshots
image

Additional context
The problem is with SSL
I tried deproxyfing Cloudflare and also tried to get another SSL cert but they are not working. Worth mentioning other services on RPI4 are working fine.

[Shahin-rmz]

here is the important log that I've found

invidious_1     | 2024-08-24 23:27:12 UTC [error] get_video: F0dJBrFyID8 : SSL_connect: error:0A000086:SSL routines::certificate verify failed

[Shahin-rmz]

The error was from server level.
it was because of the Clock of the server was not synced so the cert robot could not get the new SSL certificate.
it has been solved.