Blank homepage after activating Extended Random Number Generator

Extended Random Number Generator isn’t working on my site at all. I added the tag [random-number from=”2″ to=”72″ format=”%b”]%d to a sidebar widget and my website doesn’t load at all; it just displays a blank white page.

I also added [random-number] to the widget but same outcome — blank page.

I’d like to use this plugin.

https://www.ads-software.com/extend/plugins/extended-random-number-generator/