Help – Can't get categories

Hi everyone!

Please help, i am calling in my widget a get_categories function : for example
$categories=get_categories(‘orderby=order&hide_empty=0&exclude=1’);

and it doesn’t work – shows nothing.
I also tried like this, it shows something, but that the Categories are empty:
wp_list_categories($args)
$args = array(
‘orderby’ => ‘name’,
‘order’ => ‘ASC’,
‘style’ => ‘list’,
‘show_count’ => 0,
‘hide_empty’ => 1,
‘use_desc_for_title’ => 1,
‘taxonomy’ => ‘category’,
‘walker’ => ‘Walker_Category’ );

https://codex.www.ads-software.com/Template_Tags/wp_list_categories

It shows:
Categories
No categories , although i have some.

Please help!