This is mainly because of the element names “name”, “product”, “day”, “month” and “year” in the contact form. WordPress won’t allow to use  these names as element name.

So please go to the “Edit element” section of the contact form manager/XYZ WP Contact Form and rename the elements “name”, ”product”, ”day”, “month” and “year”.

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★ Hidden field ★ Numeric field ★ Rich Text field ★ Contact Request Tracking ★ Placeholder ★ Visitor Information Tracking ★ Configurable custom error messages etc.

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