Wholesale for Woocommerce Plugin Corrupted my site

Hello. I purchased & installed Wholesale for WooCommerce plugin. After install, my Backend, at top, had a list of Warnings –
Warning: include_once(/home/customer/www/extremeteamcarts.com/public_html/wp-content/plugins/woocommerce-wholesale-prices/inc/class-wwp-wholesale-general-functions.php): failed to open stream: No such file or directory in /home/customer/www/extremeteamcarts.com/public_html/wp-content/plugins/woocommerce-wholesale-pricing/woocommerce-wholesale-pricing.php on line 93

There are several more of these Warnings down the page. Initially I was able to Deactivate & Delete the plugin. However, now my Backend is not accessible at all! I contacted WooCommerce, who told me, “Please disable the debugging mode, this is warning displaying due to your products are sync with QuickBooks.”
Problem is, we cannot get to the Backend. Cannot even log in. Try to Reset password with WordPress.org yet I get message “No account with that email” – yet still getting emails from WordPress/Wordfence stating Login Attempts. Can somebody please help? Thank you SO MUCH!

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