Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, array must have exactly two members in /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-hook.php:324
Stack trace:
#0 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#1 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/kses.php(2332): apply_filters()
#2 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-theme-json.php(3075): safecss_filter_attr()
#3 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-theme-json.php(1366): WP_Theme_JSON::is_safe_css_declaration()
#4 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-theme-json.php(1123): WP_Theme_JSON->get_layout_styles()
#5 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/global-styles-and-settings.php(228): WP_Theme_JSON->get_stylesheet()
#6 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/script-loader.php(2504): wp_get_global_stylesheet()
#7 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-hook.php(324): wp_enqueue_global_styles()
#8 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#9 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/plugin.php(517): WP_Hook->do_action()
#10 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/script-loader.php(2262): do_action()
#11 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-hook.php(324): wp_enqueue_scripts()
#12 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#13 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/plugin.php(517): WP_Hook->do_action()
#14 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/general-template.php(3052): do_action()
#15 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-content/themes/betheme/404.php(20): wp_head()
#16 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/template-loader.php(106): include('/homepages/19/d...')
#17 /homepages/19/d4295022451/htdocs/Golfpartner24/wp-blog-header.php(19): require_once('/homepages/19/d...')
#18 /homepages/19/d4295022451/htdocs/Golfpartner24/index.php(17): require('/homepages/19/d...')
#19 {main}
thrown in /homepages/19/d4295022451/htdocs/Golfpartner24/wp-includes/class-wp-hook.php on line 324