Contact Form 7 Error 500

Hi,
When i try send buy contact form7 version 5.5.6, return this error.

Can anyone have the same problem?
The website is https://newfood.pt
Page: https://newfood.pt/embaixadores-newfood/

index.js?ver=5.5.6:1 POST https://newfood.pt/wp-json/contact-form-7/v1/contact-forms/1905/feedback 500

——

Response {type: 'basic', url: 'https://newfood.pt/wp-json/contact-form-7/v1/contact-forms/1905/feedback', redirected: false, status: 500, ok: false, …}
body: (...)
bodyUsed: false
headers: Headers
Prototype: Headers
append: ƒ append()
delete: ƒ delete()
entries: ƒ entries()
forEach: ƒ forEach()
get: ƒ ()
has: ƒ has()
keys: ƒ keys()
set: ƒ ()
values: ƒ values()
constructor: ƒ Headers()
Symbol(Symbol.iterator): ƒ entries()
Symbol(Symbol.toStringTag): "Headers"
Prototype: Object
ok: false
redirected: false
status: 500
statusText: ""
type: "basic"
url: "https://newfood.pt/wp-json/contact-form-7/v1/contact-forms/1905/feedback"
Prototype: Response

Thanks for any help
Bruno Azevedo

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