[Risolto] Messaggio di errore quando tento di accedere alla traduzione

HP Fatal error:  Uncaught TypeError: array_shift(): Argument #1 ($array) must be of type array, null given in /wp-content/themes/once/inc/template-functions.php:825
Stack trace:
#0 /path/to/theme/inc/template-functions.php(825): array_shift(NULL)
#1 /path/to/theme/inc/filters.php(42): csco_get_state_large_section()
#2 /wp-includes/class-wp-hook.php(326): csco_body_class(Array)
#3 /wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array)
#4 /wp-includes/post-template.php(859): apply_filters('body_class', Array, Array)
#5 /wp-includes/post-template.php(622): get_body_class(Array)
#6 /path/to/theme/header.php(20): body_class()
#7 /wp-includes/template.php(810): require_once('/path/to/theme/...')
#8 /wp-includes/template.php(745): load_template('/path/to/theme/...', true, Array)
#9 /wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#10 /path/to/theme/index.php(15): get_header()
#11 /wp-includes/template-loader.php(106): include('/path/to/theme/...')
#12 /wp-blog-header.php(19): require_once('/path/to/theme/...')
#13 /index.php(17): require('/path/to/theme/...')
#14 {main}
  thrown in /wp-content/themes/once/inc/template-functions.php on line 825