Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, array must have exactly two members in /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-hook.php:308
Stack trace:
#0 /home/c21happi/public_html/crystal-garden.com/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array)
#1 /home/c21happi/public_html/crystal-garden.com/wp-includes/kses.php(2263): apply_filters('safe_style_css', Array)
#2 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-theme-json.php(2767): safecss_filter_attr('gap: 0.5em')
#3 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-theme-json.php(1108): WP_Theme_JSON::is_safe_css_declaration('gap', '0.5em')
#4 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-theme-json.php(933): WP_Theme_JSON->get_layout_styles(Array)
#5 /home/c21happi/public_html/crystal-garden.com/wp-includes/global-styles-and-settings.php(149): WP_Theme_JSON->get_stylesheet(Array, Array)
#6 /home/c21happi/public_html/crystal-garden.com/wp-includes/script-loader.php(2434): wp_get_global_stylesheet()
#7 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-hook.php(308): wp_enqueue_global_styles('')
#8 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#9 /home/c21happi/public_html/crystal-garden.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#10 /home/c21happi/public_html/crystal-garden.com/wp-includes/script-loader.php(2180): do_action('wp_enqueue_scri...')
#11 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-hook.php(308): wp_enqueue_scripts('')
#12 /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array)
#13 /home/c21happi/public_html/crystal-garden.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#14 /home/c21happi/public_html/crystal-garden.com/wp-includes/general-template.php(3043): do_action('wp_head')
#15 /home/c21happi/public_html/crystal-garden.com/wp-content/themes/Avada/header.php(21): wp_head()
#16 /home/c21happi/public_html/crystal-garden.com/wp-includes/template.php(783): require_once('/home/c21happi/...')
#17 /home/c21happi/public_html/crystal-garden.com/wp-includes/template.php(718): load_template('/home/c21happi/...', true, Array)
#18 /home/c21happi/public_html/crystal-garden.com/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#19 /home/c21happi/public_html/crystal-garden.com/wp-content/themes/Avada/100-width.php(15): get_header()
#20 /home/c21happi/public_html/crystal-garden.com/wp-includes/template-loader.php(106): include('/home/c21happi/...')
#21 /home/c21happi/public_html/crystal-garden.com/wp-blog-header.php(19): require_once('/home/c21happi/...')
#22 /home/c21happi/public_html/crystal-garden.com/index.php(17): require('/home/c21happi/...')
#23 {main}
thrown in /home/c21happi/public_html/crystal-garden.com/wp-includes/class-wp-hook.php on line 308