Error message since last update

Hi there – since the last update, some of my sites running Simple History have been displaying the following error message:

Warning: ucwords() expects exactly 1 parameter, 2 given in /my-site/wp-content/plugins/simple-history/inc/SimpleHistory.php on line 1103

I’ve deactivated the plugin for now to get rid of the error, but I’d like to continue to use it!