Site experiencing technical issue

My site crashed when I installed OTP login plugin developed by you. As soon as I activated OTP plugin, site crashed. When I entered dashboard it gave me following error. For now I am uninstalling both the plugins but I need support from the developer ASAP.

An error of type E_ERROR was caused in line 57 of the file /home/u108201642/domains/kwalitykitchen.in/public_html/wp-content/plugins/side-cart-woocommerce/admin/class-xoo-wsc-admin-settings.php. Error message: Uncaught Error: Call to a member function auto_generate_settings() on null in /home/u108201642/domains/kwalitykitchen.in/public_html/wp-content/plugins/side-cart-woocommerce/admin/class-xoo-wsc-admin-settings.php:57 Stack trace: #0 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-includes/class-wp-hook.php(287): Xoo_Wsc_Admin_Settings->generate_settings(”) #1 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #3 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-settings.php(546): do_action(‘init’) #4 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-config.php(80): require_once(‘/home/u10820164…’) #5 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-load.php(37): require_once(‘/home/u10820164…’) #6 /home/u108201642/domains/kwalitykitchen.in/public_html/wp-admin/admin.php(34): require_on

Please look into it. Thank you