After restoring site with all in one plugin this error is shown on login.

Warning: Cannot modify header information - headers already sent by (output started at /home3/datwiz/wantonfarms.com/wp-content/plugins/sticky-add-to-cart-for-woocommerce/inc/options-framework.php:1) in /home3/datwiz/wantonfarms.com/wp-includes/pluggable.php on line 1281

Warning: Cannot modify header information - headers already sent by (output started at /home3/datwiz/wantonfarms.com/wp-content/plugins/sticky-add-to-cart-for-woocommerce/inc/options-framework.php:1) in /home3/datwiz/wantonfarms.com/wp-includes/pluggable.php on line 1284

No page displays and I cannot get into the admin dashboard.