how to add a page

The code you have pasted has errors – the get_header() is fine but then you have HTML code in PHP code areas.

Also you have included the header twice. Check this code out http://pastebin.com/mH2tn3Qw

The header code should be placed in header.php if you are using the get_header() call

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)