Incompatibility with flatpickr module (Invalid argument)

Hi,

I'm having an incompatibility issue with the flatpickr datetimepicker module (flatpickr).

When I enable flatpickr, I'm getting the following error message:

Warning: Invalid argument supplied for foreach() in conditional_fields_element_info_alter() (line 208 of ../modules/conditional_fields/conditional_fields.module).

For info, here are the lines 203-211 of conditional_fields.module 7.x-3.x-dev

/**
* Implements hook_element_info_alter().
* Adds an #after_build function to all form elements.
*/
function conditional_fields_element_info_alter(&$types) {
foreach ($types as $type => $info) {
$types[$type]['#after_build'][] = 'conditional_fields_element_after_build';
}
}

But I don't know what is the problem. Thanks for any help.