Warning: ksort() expects parameter 1 to be array, object given in

Same here. Plugin dont work with WP 4.7. Problem started after update to 4.7.

Hope this will be fixed.

Clearing the cache worked for me – I use WP Super Chache.

I have the same issue with WP 4.7 and PHP 5.4.45.
I don’t use a cache plugin, and the error occurs also for non-logged in users.

Same problem here on 4.7. No caching plugins.

Fixed in 4.3.2

I see no option to report the spam post above.

Hola tuve ese problema y la solución es Actualizar todos los plugin y verificar si tu tema también esta pidiendo actualizacion, así revolví el problema en mi website.

Jm Design Saldos