Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($function) must be a valid callback, function "_wp_register_default_icon_collections" not found or invalid function name in /home/24/64/2036424/web/wp-includes/class-wp-hook.php:341
Stack trace:
#0 /home/24/64/2036424/web/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#1 /home/24/64/2036424/web/wp-includes/plugin.php(523): WP_Hook->do_action()
#2 /home/24/64/2036424/web/wp-settings.php(771): do_action()
#3 /home/24/64/2036424/web/wp-config.php(73): require_once('...')
#4 /home/24/64/2036424/web/wp-load.php(50): require_once('...')
#5 /home/24/64/2036424/web/wp-blog-header.php(13): require_once('...')
#6 /home/24/64/2036424/web/index.php(17): require('...')
#7 {main}
thrown in /home/24/64/2036424/web/wp-includes/class-wp-hook.php on line 341
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