Many fuctions are missing in my DirectAdmin and I receive errors. Can I update DirectAdmin?

[dragon2000]

Hello,

I installed DirectAdmin but received straightaway error during the installation.
Now I'm missing many functions like database, emails etc so I can't manage property my Ubuntu server.
When I click on Database I get error. See the attachment.
I manualy installed Apache, MySQL and PHP but it doesn't show in DirectAdmin.
I tried restart under Support -> Updates in DirectAdmin but it doesn't work.
How can I update DirectAdmin now so I can use it?

Thank you,
Dragan