Site goes offline

After 2 mounth of using ghost my site goes down :smiley:)))
Can you please help me to find the way how to resurect it)

For now my site looks like this:

week ago i get this email:

Also now i check mysql status:

and ghost doctor:

i think this is SSL trouble. Is there is some instruction how to renew sertificate?

done problem was solved by devops