Issue Plesk 404

[George Melikyan]

Hey. Run into problems.
Installed Plesk on Ubuntu 16.04
Everything worked fine.
Then I updated Ubuntu to 18.04
When going to the panel at the address:8443 I get an error 404.

When you try to install:
with wget-o - https://autoinstall.plesk.com/one-click-installer | W

getting an error:
Error: unable to select installation type for already installed products.

Thanks.

 

[IgorG]

First of all, you should follow the special dist-upgrade instruction from Plesk documentation Dist-Upgrade Support
And second - if I'm not mistaken, dist-upgrade to Ubuntu 18.04 is not supported.