Fatal Error (URGENT)

Hi,

I was going to deactivate the plugin for a while to test some pages.

However, the site became

Fatal error: Uncaught Error: Class ‘Size_Chart_For_Woocommerce_Public’ not found in /home/wellmad6/public_html/wp-content/themes/the-hanger-child/functions.php:22 Stack trace: #0 /home/wellmad6/public_html/wp-settings.php(424): include() #1 /home/wellmad6/public_html/wp-config.php(92): require_once(‘/home/wellmad6/…’) #2 /home/wellmad6/public_html/wp-load.php(37): require_once(‘/home/wellmad6/…’) #3 /home/wellmad6/public_html/wp-blog-header.php(13): require_once(‘/home/wellmad6/…’) #4 /home/wellmad6/public_html/index.php(17): require(‘/home/wellmad6/…’) #5 {main} thrown in /home/wellmad6/public_html/wp-content/themes/the-hanger-child/functions.php on line 22

I cannot even log in now. Please advise.

The page I need help with: [log in to see the link]