Plesk Error at vizuka.com strato hosting Germany after installing ssl Certificate

[vizuka]

I have installed some lets encrypt ssl certificate on 1 domain and 10 subdomains
I had an ssl error with firefox as I try to use this domain:
https://demo.vizuka.com/v55
As https://shop.vizuka.com is fine.

Now I have a server down with some bad plesk error messages:
/etc/psa/psa.conf

Virtual hosts directory

HTTPD_VHOSTS_D /var/www/vhosts

but only /var/www/vhost is available

I used the Plesk 12.5 Let’s Encrypt extension to install the ssl certificates.
No reboot at the server is possible at Strato Server and Strato config.
ssh: shutdown -r now
server is not available
any suggestion to get my website running.

this is the Error link for Plesk 12.5

Cannot create subscriptions "Cannot chdir to /var/www/vhosts System error 2: No...

the new Plesk 12.5 Version was updated last week after an upgrade Error

[rg305]

@vizuka

Virtual hosts directory
HTTPD_VHOSTS_D /var/www/vhosts
but only /var/www/vhost is available

I would try linking /var/www/vhosts to /var/www/vhost

And since you can't

@vizuka

ssh: shutdown -r now
server is not available

Try:
reboot
or
sudo reboot