: Uncaught Error: Undefined constant "ICL_LANGUAGE_CODE" in /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-content/themes/concours/functions.php:280
Stack trace:
#0 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/class-wp-hook.php(326): append_language_class(Array)
#1 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array)
#2 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/post-template.php(857): apply_filters('body_class', Array, Array)
#3 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/post-template.php(620): get_body_class(Array)
#4 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-content/themes/concours/header.php(75): body_class('')
#5 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/template.php(790): require_once('/home/clients/7...')
#6 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/template.php(725): load_template('/home/clients/7...', true, Array)
#7 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#8 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-content/themes/concours/page-liste-partenaires.php(5): get_header()
#9 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-includes/template-loader.php(106): include('/home/clients/7...')
#10 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-blog-header.php(19): require_once('/home/clients/7...')
#11 /home/clients/7de1993e6f00a07c472d27d33eef545f/web/index.php(17): require('/home/clients/7...')
#12 {main}
thrown in /home/clients/7de1993e6f00a07c472d27d33eef545f/web/wp-content/themes/concours/functions.php on line 280