The correct way to resolve this issue. For example if your site was testsite.com and when you go to the site and you are getting a similar error to :
Warning: Class __PHP_Incomplete_Class has no unserializer in /home/content/p3pnexwpnas13_data02/77/3033977/html/wp-content/object-cache.php on line 520
The resolution would be if you are a Godaddy customer to check gateway.godaddy.com and click on settings for the site with the issue. Under the Domain tab If the site is set to http://www.testsite.com then click on actions and select make testsite.com primary and click on ok .
Give 5-30 minutes for this to update and this should resolve the issue .
