Fatal error: Uncaught Error: array_merge() does not accept unknown named parameters
in /home/aviabnta/public_html/wp-includes/widgets.php on line 1265

Call stack:

1. array_merge()
   wp-includes/widgets.php:1265
2. retrieve_widgets()
   wp-includes/widgets.php:1220
3. _wp_sidebars_changed()
   wp-includes/class-wp-hook.php:289
4. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:311
5. WP_Hook::do_action()
   wp-includes/plugin.php:478
6. do_action()
   wp-includes/theme.php:3267
7. check_theme_switched()
   wp-includes/class-wp-hook.php:287
8. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:311
9. WP_Hook::do_action()
   wp-includes/plugin.php:478
10. do_action()
    wp-settings.php:546
11. require_once()
    wp-config.php:102
12. require_once()
    wp-load.php:37
13. require_once()
    wp-blog-header.php:13
14. require()
    index.php:17