Plugin kills my js

After some testing (ie deleting parts of the plugin to see what causes it) I’ve discovered that this function is killing my js and throwing up errors in my already working js in the console.

if ( is_admin() ) {
	add_action( 'plugins_loaded', 'incom_admin_init', 15 );
}
else {
	add_action( 'plugins_loaded', 'incom_frontend_init', 15 );
}

It keeps telling me functions that ‘Uncaught TypeError: undefined is not a function’ for things that were previously working just fine.

https://wordpress.org/plugins/inline-comments/