Hello, first of all I would like to thank all of you for your help. This is my first post in Let’sEncrypt.
The point is that my certificate has been working well until now. It is valid until next 26/Jul/2018, however when I try to acces to my APP it appears to be outdated.
I have checked on this website https://www.digicert.com/help/ and it seems as my certificate was outdated since last 17/Apr/2018.
When I run “certbot renew” on my server the certificate is up to date. I forced the renew and the expires date changed from june to july but when I try to acces to my my app, the certificate continues appearing as outdated since april.
My app is running on Amazon AWS on an Ubuntu server and it has been working well for last months.
Thank you very much!