RoundCube Webmail Installer: DOM: NOT OK

[Owiza007]

Please help, roundcube installer fails it says DOM: NOT OK

[lacri]

You need to configure PHP with DOM php5-dom

see

PHP: DOM - Manual
PHP: Installation/Konfiguration - Manual

[Owiza007]

Please explain in detail on what i should do, cause that site is a bit confusing. Thanks