Website is gone after using this plugin

Hi–I used this plug in because another plugin was not working well. Now my site is completely gone; the wp-admin can no longer be found. The site is live like this and I can’t get in to change anything. Please help.

Here is the URL to the broken site: http://www.hamlinechurch.org/

https://ww.wp.xz.cn/plugins/go-live-update-urls/