miising argument 2

Hi thanks for the great plugin and efforts.

When saving options in admin panel a missing argument error fires.

( ! ) Warning: Missing argument 2 for UserOnline_Options::validate() in D:\wamp\www\wacl\wp-content\plugins\wp-useronline\admin.php on line 63

this is the function on line 63 :

function validate( $options, $old_data ) { …. }

so i updated it like this and the problem solved :

function validate( $options, $old_data=” ) { …. }

Please test the plugin while your display error option is set to true.

Good works.

https://wordpress.org/plugins/wp-useronline/