and i just realised that ftp also doesnt work
it sounds as if the permissions in /etc/ssh ( possibly all /etc) are incorrect.
What are the ownership / permissions of /etc/ssh and the files in that folder ? They should be root and generally 600 or 644 for public files
i get as result 777 and user root
OK, not sure why they have changed, but that's the problem.
Where did you install certbot to ? (which directory )
I'd run the commands
chmod 755 /etc/ssh
chmod 600 /etc/ssh/*
chmod 644 /etc/ssh/*.pub
Then test and see if you can connect via ssh ( and if not, what the error is in auth.log )
finallyyy it works thank you so much
i used this instruction: https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-ubuntu-14-04
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Glad that fixed it. I can’t see anything in those instructions that would have changed permissions in the /etc/ssh foolder.
ok i only used this instruction and after that it doenst work any mor but now it works 
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aaaaand i got the error again -.-
fixed it somthing chnaged all of my permissions 
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