Simple Real Estate Pack plugin

I installed this plugin several weeks ago on one of my websites and it worked great.

Yesterday I installed the plugin on a second website and here’s what happened:

The display of my text content disappeared from the first website.

I got a error message on the second website where the widgets would be on my website that something like “Too many have tried to access these records”.

I used the Zillow API for obtaining the latest mortgage rates.

I have removed the plugin from both websites in order to get the websites back to normal, so I cannot show you the problem with the plugin installed.

Any idea what is going on that would affect both websites, and differently?

Thank you