@VaneHD You must contact your host provider to get the database address if it not hosted on same machine, But you should try 127.0.0.1 or localhost

Sounds like the forum module is missing files, Have you modifyed/deleted anythings there?
 

@Novarisk Be sure you have setuped the permissions for each group and the url path starts with /

Hey your welcome to use 2.0 as public the only thing is it still missing a few features can be bugs but it should be pretty stable to be used

No :/ Custom pages don't work with php

You will need to create a own module to create pages with php