options or kushkiInstance parameters are null or undefined, then throw error code E012.options.fields parameter has an incorrect selector, then throw error code E013.isSubscription flag must be true.preventAutofill flag must be true.CardOptions.fields.otp attribute.&:valid: This selector allows setting styles when an option was selected.&:invalid: This selector allows setting styles when no option was selected, and this selection is required.&label: This selector allows you to set styles for all selected labels.&label:invalid: This selector allows setting styles for all labels when no option was selected, and this selection is required.&#ksh-deferred-checkbox: This selector allows you to change the border color, background, box shadow, and more on the checkbox.&#ksh-deferred-checkbox:checked: This selector allows you to change the border color, background, box shadow, checkmark color, and more when the checkbox is checked.&#ksh-deferred-checkbox>label: This selector allows you to customize the checkbox label.&#ksh-deferred-creditType: This selector allows you to change the width, height, and other properties of the credit type container. It is only enabled for merchants in Ecuador and Mexico.&#ksh-deferred-months: This selector allows you to change the width, height, and other properties of the months container.&#ksh-deferred-graceMonths: This selector allows you to change the width, height, and other properties of the grace months container. It is only enabled for merchants in Ecuador and Mexico.CardOptions.fields.deferred attribute.