if you add help text to the meta robots field it throws an error

if you add help text to the meta robots field it throws an error (altered on stucture/content type/basic page)
Removing the help text does not resolve the error

• Warning: explode() expects parameter 2 to be string, array given in metatags_quick_field_widget_form() (line 411 of C:\xampp\htdocs\drupaltoby\sites\all\modules\metatags_quick\metatags_quick.module).
• Warning: Invalid argument supplied for foreach() in form_type_checkboxes_value() (line 2249 of C:\xampp\htdocs\drupaltoby\includes\form.inc).