error when updating to Panels 6.x-3.7

I just updated CTools to 6.x-1.7 and Panels to 6.x-3.7. CTools was done first. When I did update.php on Panels, I got the following error:

warning: Invalid argument supplied for foreach() in --mysite--/sites/all/modules/ctools/plugins/export_ui/ctools_export_ui.class.php on line 54.

Is there something I need to do manually to fix this?