Required Tour variation

Hello,
I am using your plugin to manage tours on our website.
I added some variations to a tour and made them required.

The problem is when I submit the booking form, 2 situations are possible :
1/If I don’t add an input to the required variation, I get an error
2/If I add an input to the required variation, nothing happens.

My problem is with the second situation. When I inspected and tried to debug the code, I found out that there is a loop that doesn’t stop when it gets the value of the required variation.

Here is the code that loops for the variation

$.each(el_variation_attr_field, function (i) {
								console.log("*************start iteration*****"); 
								console.log('value of i '+ i);
								let el_variation_attr_field = $(this);
								variation_attr_id = parseInt(el_variation_attr_field.attr('name'));

								console.log("attribute value "+ el_variation_attr_field.val() ) ;

								if (parseFloat(el_variation_attr_field.val()) > 0) {
									console.log("field > 0") ; 
									data.tour_variations[variation_id][variation_attr_id] = {};
									data.tour_variations[variation_id][variation_attr_id].quantity = el_variation_attr_field.val();

									flag_error_variation_quantity = false;
									console.log('*******value of flag_error_quantity'+flag_error_variation_quantity);
								}

								console.log("total variation "+ total_el_variation_attr_field ) ; 

								if (variation_required) {
									if (flag_error_variation_quantity && i === total_el_variation_attr_field - 1) {
										flag_errors = true;
										el_tour_variation_item.addClass('errors');
										setTimeout(function () {
											el_tour_variation_item.removeClass('errors')
										}, 2000);
									}
									else flag_errors = false;
								}

Can you please help me figure this out ?
Thank you for your help