site crashed after latest update

Hi, Author,
my site got crashed after updating the 7.0.9 today

showing below message

This plugin failed to load properly and is paused during recovery mode.

An error of type E_ERROR was caused in line 48 of the file /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-content/plugins/wp-whatsapp-chat-pro/includes/notices.php. Error message: Uncaught Error: Call to a member function get_activation() on null in /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-content/plugins/wp-whatsapp-chat-pro/includes/notices.php:48 Stack trace: #0 /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-includes/class-wp-hook.php(308): QLWAPP_PRO_Notices->add_admin_notices('') #1 /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #2 /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-admin/admin-header.php(303): do_action('admin_notices') #4 /home/sites/21a/4/4fc7475811/public_html/bslfashions/wp-admin/plugins.php(605): require_once('/home/sites/21a...') #5 {main} thrown

please fix it

thank you