[support] Invalid argument supplied for foreach() in C:\www\webroot\drupal-6.10\includes\form.inc on line 1197

Hello, I am getting this warning message: *warning: Invalid argument supplied for foreach() in C:\www\webroot\drupal-6.10\includes\form.inc on line 1197 a*fter I upload a certain drupal6.x module It is a custom module, a certain form. It was originally written for Drupal 5.x. I converted it to Drupal6.x, and after uploading it on my local Drupal(6.10) got this warning, warning: Invalid argument supplied for foreach() in C:\www\webroot\drupal-6.10\includes\form.inc on line 1197. Any Help would be greatly appreciated Thanks Neeraja