Uptime and Downtime Reporting incorrectly

We are having an issue with the Uptime Reporting feature. Every 5 minutes we get an email saying the site is down, and then 5 minutes later it is back up. this has been going on since Friday...over 1,600+ emails... The site is not going down, every time I check the website when it notifies us, it's fine. I check my other uptime reporting and nothing is going down. This website is on the same server as 5 other sites, and no resources are timing out. I have restarted the server, checked error logs etc. I even reinstalled the plugin thinking that was it. At this point i'm ready to uninstall the plugin permanently. What's the deal lately? This is the only site causing the issue out of our 50+ using the plugin.

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