Array<br />
<b>Fatal error</b>:  Uncaught Error: Class 'WP_Widget_Calendar' not found in /home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-widget-factory.php:61
Stack trace:
#0 /home/vbfi5lgrwz2k/public_html/wp-includes/widgets.php(115): WP_Widget_Factory-&gt;register('WP_Widget_Calen...')
#1 /home/vbfi5lgrwz2k/public_html/wp-includes/widgets.php(1758): register_widget('WP_Widget_Calen...')
#2 /home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-hook.php(292): wp_widgets_init('')
#3 /home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-hook.php(316): WP_Hook-&gt;apply_filters(NULL, Array)
#4 /home/vbfi5lgrwz2k/public_html/wp-includes/plugin.php(484): WP_Hook-&gt;do_action(Array)
#5 /home/vbfi5lgrwz2k/public_html/wp-settings.php(651): do_action('init')
#6 /home/vbfi5lgrwz2k/public_html/wp-config.php(192): require_once('/home/vbfi5lgrw...')
#7 /home/vbfi5lgrwz2k/public_html/wp-load.php(37): require_once('/home/vbfi5lgrw...')
#8 /home/vbfi5lgrwz2k/public_html/wp-blog-header.php(13): require_once('/home/vbfi5lgrw...')
#9 /home/vbfi5lgrwz2k/public_html/ind in <b>/home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-widget-factory.php</b> on line <b>61</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'WP_Error' not found in /home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-recovery-mode.php:172
Stack trace:
#0 /home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-fatal-error-handler.php(52): WP_Recovery_Mode-&gt;handle_error(Array)
#1 [internal function]: WP_Fatal_Error_Handler-&gt;handle()
#2 {main}
  thrown in <b>/home/vbfi5lgrwz2k/public_html/wp-includes/class-wp-recovery-mode.php</b> on line <b>172</b><br />