Shoipfy Json data parsing error for google markup schema - json-ld

Question

I am getting this error
"Structured data with syntax errors detected
Invalid items are not eligible for Google Search's rich results." Unparsable structured data
here is the code structured-data.liquid for How to resolve it and I also want to add FAQs schema to Shopify how to add FAQs schema to Shopify.
{%- if template contains 'index' -%}
<script type="application/ld+json">
{
"#context": "https://schema.org",
"#type": "WebSite",
"name": {{ shop.name | json }},
"url": "https://{{ shop.domain }}",
"potentialAction": {
"#type": "SearchAction",
"target": "https://{{ shop.domain }}{{ routes.search_url }}?q={query}",
"query-input": "required name=query"
}
}</script>
{% endif %}
{%- if template contains 'product' -%}
{%- if product.available == true -%}
{%- if product.selected_or_first_available_variant.inventory_policy == "continue" -%}
{%- assign availability = "PreOrder" -%}
{%- else -%}
{%- assign availability = "InStock" -%}
{%- endif -%}
{%- else -%}
{%- assign availability = "OutOfStock" -%}
{%- endif -%}
<script type="application/ld+json">
{
"#context": "https://schema.org",
"#id": {{ canonical_url | json }},
"#type": "Product",
"brand": {
"#type": "Brand",
"name": {{ product.vendor | json }}
},
"sku": {{ product.selected_or_first_available_variant.sku | json }},
"description": {{ product.description | strip_html | json }},
"url": {{ canonical_url | json }},
"name": {{ product.title | json }},
{%- if product.featured_image -%}
"image": "https:{{ product.featured_image | product_img_url: 'grande' }}",
{%- endif -%}
"offers": {
"#type": "Offer",
"priceCurrency": "{{ shop.currency }}",
"price": "{{ product.selected_or_first_available_variant.price | money_without_currency | remove: "," }}",
"availability": "http://schema.org/{{ availability }}",
"url": {{ canonical_url | json }},
"sku": {{ product.selected_or_first_available_variant.sku | json }},
"seller": {
"#type": "Organization",
"name": {{ shop.name | json }}
}
{%- if product.selected_or_first_available_variant.barcode.size == 12 -%},
,"gtin12": "{{ product.selected_or_first_available_variant.barcode }}"
{% endif %}
{%- if product.selected_or_first_available_variant.barcode.size == 13 -%},
,"gtin13": "{{ product.selected_or_first_available_variant.barcode }}"
{%- endif -%}
{%- if product.selected_or_first_available_variant.barcode.size == 14 -%},
,"gtin14": "{{ product.selected_or_first_available_variant.barcode }}"
{%- endif -%}
}
}</script>
{%- endif -%}
{%- if template contains 'article' -%}
<script type="application/ld+json">
{
"#context": "http://schema.org",
"#type": "Article",
"mainEntityOfPage": {{ canonical_url | json }},
"name": {{ article.title | json }},
"headline": "{{- article.title -}}",
"image": [
"{{ article | img_url: 'master' }}"
],
datePublished: "{{- article.published_at | time_tag -}}",
"dateModified": "{{- article.published_at | time_tag -}}",
"author": {
"#type": "Person",
"name": "{{- article.author -}}"
},
"publisher": {
"#type": "Organization",
"name": "{{- shop.name -}}",
"logo": {
"#type": "ImageObject",
"url": "{{- 'logo.jpg' | file_url: 'master' -}}"
}
},
"description": {{- article.excerpt_or_content | strip_html | json -}},
"articleBody": {{- article.content | strip_html | json -}}
}
</script>
{%- endif -%} }