[Plugin: LBAK User Tracking] numerous errors on install

looks like a great plugin.
err on install:
“
Warning: main(php_includes/upgrades.php) [function.main]: failed to open stream: No such file or directory in /homepages/33/d346285646/htdocs/mywebsite/wp-content/plugins/lbak_user_tracking.php on line 51

Fatal error: main() [function.require]: Failed opening required ‘php_includes/upgrades.php’ (include_path=’.:/usr/lib/php’) in /homepages/33/d346285646/htdocs/mywebsite/wp-content/plugins/lbak_user_tracking.php on line 51
“
I’d like to use this plugin…