Website giving warnings

I recently installed Woocommerce on my website but it started showing these errors:
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wc_setup_product_data’ not found or invalid function name in /wp-includes/plugin.php on line 507
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘woocommerce_reset_loop’ not found or invalid function name in /wp-includes/plugin.php on line 507
Warning: Cannot modify header information – headers already sent by (output started at /wp-includes/plugin.php:507) in /wp-includes/pluggable.php on line 678

https://www.ads-software.com/plugins/woocommerce/