Post Grid – Error after parsing SQL to new domain name

We had to change the domain name from http://horses.gate.dk to http://shop.whenhorseschoose.com/
Standard procedure that we have done many times, but newer with post grid plugin.

After uploading the new SQL to server the pages where post grid is user have this error:
Warning: Invalid argument supplied for foreach() in /home/www/horses.gate.dk/wp-content/plugins/post-grid/grid-items/variables.php on line 114

//
foreach($query_orderby as $orderby){

How can we fix this?
URL: http://shop.whenhorseschoose.com/mia-and-the-wild-mustangs/
Thanks