Fatal error: Uncaught Error: Undefined constant "HEADER" in /home/users/multiregion/public_html/czasnazmiany/wp-content/themes/sparkling/inc/custom-header.php:56 Stack trace: #0 /home/users/multiregion/public_html/czasnazmiany/wp-includes/class-wp-hook.php(324): sparkling_header_style('') #1 /home/users/multiregion/public_html/czasnazmiany/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /home/users/multiregion/public_html/czasnazmiany/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/users/multiregion/public_html/czasnazmiany/wp-includes/general-template.php(3064): do_action('wp_head') #4 /home/users/multiregion/public_html/czasnazmiany/wp-content/themes/sparkling/header.php(30): wp_head() #5 /home/users/multiregion/public_html/czasnazmiany/wp-includes/template.php(810): require_once('/home/users/mul...') #6 /home/users/multiregion/public_html/czasnazmiany/wp-includes/template.php(745): load_template('/home/users/mul...', true, Array) #7 /home/users/multiregion/public_html/czasnazmiany/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #8 /home/users/multiregion/public_html/czasnazmiany/wp-content/themes/sparkling/page.php(13): get_header() #9 /home/users/multiregion/public_html/czasnazmiany/wp-includes/template-loader.php(106): include('/home/users/mul...') #10 /home/users/multiregion/public_html/czasnazmiany/wp-blog-header.php(19): require_once('/home/users/mul...') #11 /home/users/multiregion/public_html/czasnazmiany/index.php(17): require('/home/users/mul...') #12 {main} thrown in /home/users/multiregion/public_html/czasnazmiany/wp-content/themes/sparkling/inc/custom-header.php on line 56