Default value with custom module

I made custom module on Design manager. It uses contact property and replace with default value property is not set (blank). Tried 2 implementation case but could not work.

output of code is blank.

case 1

 <td style="width: 50%; padding-right: 14px; text-align: left; font-size: 12px; padding-bottom: 30px; line-height: 1.5em;" valign=top class="k-480-col mk-padding">
 <a href="{{ contact.booking_recomended_listing_1_url|default('example.com') }}">
 <img src="{{ contact.booking_recomended_listing_1_image|default('example.jpg', true) }}" style="width: 296px; height: 180; object-fit: contain; border: none;" width="{{ widget.image_left.width }}" alt="{{ widget.image_left.alt }}">
 <h2 style="font-size: 14px; margin-top: 15px;">{{ contact.booking_recomended_listing_1_name|default('example name', true) }}</h2> 
 {{ contact.booking_recomended_listing_1_access|default('example text', true) }} 
 </a>
 </td>

case 2

 <td style="width: 50%; padding-left: 14px; text-align: left; font-size: 12px; padding-bottom: 30px; line-height: 1.5em;" valign=top class="k-480-col k-480-padding">
 {% if contact.booking_recomended_listing_2_url != "CONTACT.BOOKING_RECOMENDED_LISTING_2_URL" %}
 <a href="{{contact.booking_recomended_listing_2_url}}">
 <img src="{{contact.booking_recomended_listing_2_image}}" style="width: 296px; height: 180; object-fit: contain; border: none;" width="{{ widget.image_left.width }}" alt="{{ widget.image_right.alt }}">
 </a>
 <h2 style="font-size: 14px; margin-top: 15px;"><a href="{{contact.booking_recomended_listing_1_url}}">{{ contact.booking_recomended_listing_2_name }}</a></h2> 
 {{ contact.booking_recomended_listing_2_access }}
 {% else %}
 <a href="example.com">
 <img src="example.JPG" style="width: 296px; height: 180; object-fit: contain; border: none;" width="{{ widget.image_left.width }}" alt="{{ widget.image_left.alt }}">
 </a>
 <h2 style="font-size: 14px; margin-top: 15px;"><a href="example.com">example name</a></h2>
 example text
 {% endif %}
 </td>

Hey there!

Since you’re dealing with contact properties, I think your best best is to set up personalization token defaults rather than setting defaults in the HubL markup

Here is an knowledge base article that will walk you through setting those up:

https://knowledge.hubspot.com/articles/kcs_article/email/how-do-i-create-default-values-for-my-personalization-tokens

Thank you. Resolved with that.