I have followed the below link to add captcha in custom form

https://magento.stackexchange.com/questions/133238/magento-2-how-to-add-captcha-to-a-custom-form

Here is my config.xml of [Vendor]/[Module]/etc
    
      <default>
        <customer>
            <captcha>
                <shown_to_logged_in_user>
                    <captcha_form>1</captcha_form>
                </shown_to_logged_in_user>
                <always_for>
                    <captcha_form>1</captcha_form>
                </always_for>
            </captcha>
        </customer>
        <captcha translate="label">
            <frontend>
                <areas>
                    <captcha_form>
                        <label>Captcha Form</label>
                    </captcha_form>
                </areas>
            </frontend>
        </captcha>
    </default>
</config>

  This is the code in layout file 

 app/design/frontend/[Vendor]/[Theme]/Magento_Customer/layout/customer_account_renew.xml

     <referenceContainer name="content">
        <block class="Vendor\Module\Block\Customer\Renewal" name="customer_form_renewal" template="Magento_Customer::form/renewal.phtml" cacheable="false">
				<container name="form.additional.info" label="Form Additional Info">
                    <block class="Magento\Captcha\Block\Captcha" name="captcha" after="-" cacheable="false">
                        <action method="setFormId">
                            <argument name="formId" xsi:type="string">custom_form</argument>
                        </action>
                        <action method="setImgWidth">
                            <argument name="width" xsi:type="string">230</argument>
                        </action>
                        <action method="setImgHeight">
                            <argument name="width" xsi:type="string">50</argument>
                        </action>
                    </block>
                </container>
        </block>		
    </referenceContainer>
		<referenceBlock name="head.components">
            <block class="Magento\Framework\View\Element\Js\Components" name="captcha_page_head_components" template="Magento_Captcha::js/components.phtml"/>
        </referenceBlock>

I have used below code in my renewal.phtml like below
    
     <form action="<?php echo $this->getUrl('customer/account/renewPost') ?>" method="post" id="form-validate">
  
      <ul class="form-list">
            <li>
                <label for="charity_name" class="required"><em>*</em><?php echo __('Charity/Organisation Name') ?></label>
                <div class="input-box">
                    <input type="text" name="charity_name" id="charity_name" value="<?php echo $block->escapeHtml($this->getCustomer()->getCharityName()) ?>" title="<?php echo __('Charity/Organisation Name') ?>" class="input-text required-entry" readonly="readonly" maxlength="50"/>
                </div>
            </li>
            <li>
                <label for="charity_email"><?php echo __('Charity E-mail Address') ?> </label>
                <div class="input-box">
                    <input type="text" name="charity_email" id="charity_email" value="<?php echo $this->getCompanyEmail(); ?>" title="<?php echo __('Charity E-mail Address') ?>" class="input-text" maxlength="200"/>
                </div>
            </li>
       <?php echo $block->getChildHtml('form.additional.info'); ?>
       <div class="buttons-set form-buttons">
        <button type="button" class="button" title="<?php echo __('Save') ?>" onclick="var validator = jQuery('#form-validate').validate(); validator.form();checkEmailAddresses()"><span><span><?php echo __('Save') ?></span></span></button>
    </div>


      <script type="text/javascript">

     function checkEmailAddresses()
      {
        var url = '<?php echo $this->getCheckEmailUrl(); ?>';
        var mgmntEmail = jQuery('#manage\\:email').val();
        var adminEmail = jQuery('#admin\\:email').val();
        jQuery.ajax({
            method: 'POST',
            url: url,
            data: {mgmntEmail: mgmntEmail, adminEmail: adminEmail},
            success: function(response) {
                if(response.indexOf("ok") > -1)
                {
                    jQuery('#form-validate').submit();
                }
                else
                {   
                    alert(response);
                }
            }
        }); 

       }
     </script>

      

It is showing in admin panel in customer configuration and i have enabled the setting, but i can't see the captcha inside my custom page.

What is the error please someone suggest me.