Database Update Required Error
My website is http://www.couponsriver.in
I am unable to go to dashboard and add new coupon or edit coupon. If i click anything in Admin Dashboard i am getting
Database Update Required
WordPress has been updated! Before we send you on your way, we have to update your database to the newest version.
The update process may take a little while, so please be patient.
If i click on update wordpress database i am getting
Call to undefined function is_main_network() in /hsphere/local/home/c340411/couponsriver.in/wp
-admin/includes/schema.php on line 560
I have no idea about this problem.
Can any one help me on this!