LimitCats Plugin and WP v2.02

The current WP offers more user levels, and I can’t seem to get the LimitCats plugin (https://www.asymptomatic.net/wp-hacks) to work. It’s been a while since I worked with the plugin, and I can’t remember which is the admin level (1 or 5) vs. the lowest user level. I made sure it’s activated. Can anyone help? Thanks.