Error:
$additional_guest_spinbox was NULL when evaluating $additional_guest_spinbox.getValue()


Debug Info:
- Registered Vars:
[
	"_SERVER", 
	"_GET", 
	"_POST", 
	"_COOKIE", 
	"_SESSION", 
	"_REQUEST", 
	"_ENV", 
	"page", 
	"headerNav", 
	"postMain", 
	"arrAttendee", 
	"event", 
	"event_product", 
	"currency", 
	"arrContact", 
	"attendance_status_combobox_update_event", 
	"product_order_options_ajax", 
	"rsvp_form", 
	"contact_id", 
	"event_attendee_id", 
	"attendance_status_combobox", 
	"current_name_changed_event", 
	"contact_representing_company_region", 
	"attendee_contact_company_id", 
	"attendee_contact_company", 
	"attending_contact_details_form", 
	"contact_first_name", 
	"contact_last_name", 
	"contact_email", 
	"contact_phone", 
	"contact_dob_d", 
	"contact_dob_m", 
	"contact_dob_y", 
	"s8-formsaddress1_address", 
	"s8-formsaddress1_suburb_city", 
	"s8-formsaddress1_state", 
	"s8-formsaddress1_postcode", 
	"s8-formsaddress1_country", 
	"event_attendee_age", 
	"event_attendee_date_of_birth", 
	"event_attendee_town_of_birth", 
	"event_attendee_nationality", 
	"event_attendee_second_nationality_if_applicable", 
	"event_attendee_mother_tongue", 
	"event_attendee_have_you_ever_been_registered_for_delf_examinatio_Yes", 
	"event_attendee_have_you_ever_been_registered_for_delf_examinatio_No", 
	"event_attendee_existing_candidate_number", 
	"event_attendee_do_you_need_any_access_arrangements_for_your_exam_Yes", 
	"event_attendee_do_you_need_any_access_arrangements_for_your_exam_No", 
	"event_attendee_where_did_you_first_hear_about_us_", 
	"event_attendee_candidate_declaration", 
	"event_id", 
	"showhide_alternate_rsvp_region", 
	"alternate_contact_form", 
	"alternate_first_name_editbox", 
	"alternate_last_name_editbox", 
	"alternate_email_editbox", 
	"alternate_phone_editbox", 
	"event_attendee_agealternate", 
	"event_attendee_date_of_birthalternate", 
	"event_attendee_town_of_birthalternate", 
	"event_attendee_nationalityalternate", 
	"event_attendee_second_nationality_if_applicablealternate", 
	"event_attendee_mother_tonguealternate", 
	"event_attendee_have_you_ever_been_registered_for_delf_examinatio_Yesalternate", 
	"event_attendee_have_you_ever_been_registered_for_delf_examinatio_Noalternate", 
	"event_attendee_existing_candidate_numberalternate", 
	"event_attendee_do_you_need_any_access_arrangements_for_your_exam_Yesalternate", 
	"event_attendee_do_you_need_any_access_arrangements_for_your_exam_Noalternate", 
	"event_attendee_where_did_you_first_hear_about_us_alternate", 
	"event_attendee_candidate_declarationalternate", 
	"additional_guests_region", 
	"payment_region"
]


Possible Solutions:
- Catch this exception (Framework\DOM\Features\Scripting\Exceptions\InScript)


in /usr/lib/php/Oncord/stable/Scr/OpObjectDereference/OpObjectDereference.inc.php line 45