Disabling styles not working properly

Hi!

Thank you for the update about polylang compatibility again!
You have one more issue in the updated source.

The error in the file includes/header.php near line 54.
The thing is if the styles are turned OFF – there is an array items (lines 123-124) so line 54 works in all ways:

if ( ! empty( $style_array ) ) {

There is empty item $style_array['name'] and $style_array['extra_css'].
So you should check name item than, like:

if ( $style_array['name'] != '' ) {

Or, just don’t set it on line 123-124.
Thanks.