SmartCrawl conflicting with WooCommerce

Whenever I enable SmartCrawl, the home page becomes blank. There are no errors in the console. I enabled the debug log and found the following in it.

[29-Sep-2018 13:15:24 UTC] PHP Fatal error: Uncaught Error: Call to undefined method Smartcrawl_OnPage::_tags_to_keywords() in /home/++++/***gear.us/wp-content/plugins/wpmu-dev-seo/includes/tools/onpage.php:755
Stack trace:
#0 /home/+++/***gear.us/wp-content/plugins/wpmu-dev-seo/includes/tools/onpage.php(711): Smartcrawl_OnPage->get_keywords()
#1 /home/+++/***gear.us/wp-content/plugins/wpmu-dev-seo/includes/tools/onpage.php(314): Smartcrawl_OnPage->smartcrawl_meta_keywords()
#2 /home/+++/****gear.us/wp-includes/class-wp-hook.php(286): Smartcrawl_OnPage->smartcrawl_head('')
#3 /home/++++/****gear.us/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#4 /home/++++/****gear.us/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#5 /home/++++/****gear.us/wp-includes/general-template.php(2614): do_action('wp_head')
#6 /home/+++/****gear.us/wp-content/themes/foundry/header.php(8): wp_head()
#7 /home/+++/****gear.us/wp-includes/template.php(688): require_on in /home/++++/***gear.us/wp-content/plugins/wpmu-dev-seo/includes/tools/onpage.php on line 755

I did a Plugin Conflict test and found that it is a conflict with WooCommerce.

I am transferring the products from WooCommerce to MarketPress.