AmirMasoud

It’s because of PHP version as PHP docs says on the empty function:

Note: Prior to PHP 5.5, empty() only supports variables; anything else will result in a parse error. In other words, the following will not work: empty(trim($name)). Instead, use trim($name) == false.

Alternatively if you can update your customize.php line 22-33 to the following:

<?php $beautiful_genral_font = get_theme_mod(“beautiful_genral_font”) ?>
<?php if(! empty($beautiful_genral_font) ) : ?>
@import url(http://fonts.googleapis.com/css?family=&lt;?php echo $beautiful_genral_font ?>);
<?php endif ?>

<?php if( ! empty($beautiful_genral_font) ) : ?>
@import url(http://fonts.googleapis.com/css?family=&lt;?php echo $beautiful_genral_font ?>);
<?php endif ?>

and just updated it to v1.1.1 https://themes.trac.wordpress.org/ticket/26219

Thanks for reporting.