Moving a Drupal website from one server to another, an error needs to be fixed
Try disabling the update module, the quickest/easiest way would be via Drush using drush dis update.

If you cannot use drush follow this: http://drupal.org/node/157632
"phpMyAdmin

To disable a module via phpMyAdmin you must login to phpMyAdmin. Then you must locate the database where Drupal is installed. Once you have done so look for the "system" table. Click and open it. Click to browse the table. Find the record for the module that is causing the problems and select the edit function. Set the status to "0" and save."