Smartcrawl - 404 error on sitemap.xml

Hello

I just installed the SmartCrawl plugin and was going through the settings. I am getting a 404 error when trying to view my sitemap. I am using NGINX and am wondering if I need to enter any rewrite rules for it since i see the path is set at ".../wp-content/uploads/sitemap.xml" and the URL is saying
"https://grimreapergamers.com/sitemap.xml".

Thanks