Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "wp_widgets_init" not found or invalid function name in /home/vendeladmin/vendeliers/wp-includes/class-wp-hook.php:286 Stack trace: #0 /home/vendeladmin/vendeliers/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #1 /home/vendeladmin/vendeliers/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #2 /home/vendeladmin/vendeliers/wp-settings.php(467): do_action('init') #3 /home/vendeladmin/vendeliers/wp-config.php(101): require_once('/home/vendeladm...') #4 /home/vendeladmin/vendeliers/wp-load.php(37): require_once('/home/vendeladm...') #5 /home/vendeladmin/vendeliers/wp-blog-header.php(13): require_once('/home/vendeladm...') #6 /home/vendeladmin/vendeliers/index.php(17): require('/home/vendeladm...') #7 {main} thrown in /home/vendeladmin/vendeliers/wp-includes/class-wp-hook.php on line 286