Purge Plugin For Backup?

Not sure exact version of WP I have. I am trying to backup my WP site, but keep running into an error stating one of your shortcodes has generated over 2 million rows of data. I have disabled the plugin but the same error still shows on backup. Apparently, according to my sources, I need to purge the data from your plugin, backup my site, then reactivate your plugin.

I am wondering if you have run into this problem or have an idea on how I can address this issue. Thank you for the great plugin and your help in this matter.

https://wordpress.org/plugins/fantasy-football/