Multisite error – class not found

Hi,

I have just activated the plugin and tried to change the login URL via the Network Settings so that this is applied to all sites on my multi-site set up. I get the below error:

Fatal error: Class ‘WPS\WPS_Hide_Login\WP’ not found in /nas/content/live/mysite/wp-content/plugins/wps-hide-login/classes/plugin.php on line 524

If I change the login URL to an individual site, it works. Please help.