Error adding field "Product Gallery" to a form of type "Post Form"

[alybarreno]

Describe the bug: Code error in the frontend when adding the field "Product Gallery" in a form type "post form" and publish.

To Reproduce:

1. Go to the form generator
2. Click on "Select a Template"
3. Select the template "Post Form All Fields"
4. Add the "Product Gallery" field
5. Click on "Publish"
6. Display in the frontend
7. Visualize the error

Expected behavior:

• The form must be shown correctly in the frontend with all the fields
• Any field must be allowed to enter the form without presenting an error

Screenshots:

[gfirem]

@alybarreno please try this again in a new form.

[alybarreno]

It shows me the same error, I tried 3 browsers and in each one I created a new form. It is presented only in the template of "Post Form All Fields".

[gfirem]

@alybarreno please try again

[alybarreno]

The error continued