White-screen with text

I installed WP Backitup Lite last week. I updated it a couple days back. then last night when I would click on my site link in my favorites, the page that came up (supposed to be my home page) was all white with black text at the top of the page. When I would do a Google search for my biz and then click on my site link there, it came up fine.

This plugin name was in that black text, so my web guy went into my FTP and deleted this plugin and now my site is back to normal. It seems I can’t use WP Backitup Lite ??

Anyone else have a problem with this?

Any ideas? I need a good backup program and wanted this plugin to work.

Thanks for any advice!

https://www.ads-software.com/extend/plugins/wp-backitup/