I have started getting this message when I log into wordpress:
Strict Standards: call_user_func_array() expects parameter 1 to be a valid callback, non-static method MBT_Featured_Book::enqueue_widget_js() should not be called statically in /home4/haristan/public_html/wp-includes/plugin.php on line 470
I'm assuming it is something to do with mybooktable. I deleted, then reinstalled mybookable, having clear all the mybooktable data, and cleared the caches, but the message still keeps displaying. If I deactivate mybooktable the message goes away and comes back when I reactivate.
I would really appreciate it if someone could help me on this.