Plugin adding 20 000 lines of code to source

Dear developers,

your plugin is adding this code to the source code of the website:

jQuery( function( $ ) {
                            function wcFreeShippingShowHideMinAmountFieldWOOCS( el ) {
				var form = $( el ).closest( 'form' );
				var minAmountField = $( 'input[id^=woocommerce_free_shipping_woocs_fixed_min_shipping_]', form ).closest( 'tr' );
				if ( 'coupon' === $( el ).val() || '' === $( el ).val() ) {
                                    minAmountField.hide();
				} else {
                                    minAmountField.show();
				}
			}

			$( document.body ).on( 'change', '#woocommerce_free_shipping_requires', function() {
                            wcFreeShippingShowHideMinAmountFieldWOOCS( this );
			});

			// Change while load.
			$( '#woocommerce_free_shipping_requires' ).change();
                            $( document.body ).on( 'wc_backbone_modal_loaded', function( evt, target ) {
				if ( 'wc-modal-shipping-method-settings' === target ) {
                                    wcFreeShippingShowHideMinAmountFieldWOOCS( $( '#wc-backbone-modal-dialog #woocommerce_free_shipping_requires', evt.currentTarget ) );
				}
                            } );
			});

Can you fix it please? It is adding 20 000 lines of code…

Thank you!

Josif