Google fonts w/o Child Theme

Hi,

I’m trying to install additional Google Fonts for Enfold.
Unfortunately I’m only able to break WordPress with that..

I pasted this code into the functions.php using the “functionality” plugin for wordpress.

add_filter( 'avf_google_heading_font',  'avia_add_heading_font');
function avia_add_heading_font($fonts)
{
$fonts['Pathway Gothic One'] = 'Pathway Gothic One:400';
return $fonts;
}

add_filter( 'avf_google_content_font',  'avia_add_content_font');
function avia_add_content_font($fonts)
{
$fonts['Pathway Gothic One'] = 'Pathway Gothic One:400';
return $fonts;
}
add_filter( 'avf_google_heading_font', 'avia_add_heading_font');
function avia_add_heading_font($fonts)
{
$fonts['PT Sans Narrow'] = 'PT Sans Narrow:400,700';
$fonts['PT Sans'] = 'PT Sans:400,700,400italic,700italic';
return $fonts;
}

add_filter( 'avf_google_content_font', 'avia_add_content_font');
function avia_add_content_font($fonts)
{

$fonts['PT Sans'] = 'PT Sans:400,700,400italic,700italic';
$fonts['PT Sans Narrow'] = 'PT Sans Narrow:400,700';
return $fonts;
}

The following error occurs:
Fatal error: Cannot redeclare avia_add_heading_font() (previously declared in […]/wp-content/plugins/functionality/functionality.php:76) in […]/wp-content/plugins/functionality/functionality.php on line 94