Received mail errors

When I receive a mail, I only get the tags set in the Message body, like this;
Fornavn: [text* text-970 id:fornavn]
Etternavn: [text* text-970 id:etternavn]
Adresse: [text* text-970 id:adresse]
Postnummer: [text* text-970 id:postnummer]
Sted: [text* text-970 id:sted]
Epost: [email* email-635 id:epost]
Telefon: [text* text-970 id:tlf]

Gavemottaker:
Fornavn: [text text-970 id:fornavn]
Etternavn: [text text-970 id:etternavn]
Adresse:[text text-970 id:adresse]
Postnummer: [text text-970 id:postnummer]
Sted: [text text-970 id:sted]
Epost: [email email-635 id:epost]
Telefon: [text text-970 id:tlf]

Why doesn`t the form data get submitted, and is it correct that so many text fields have the same id (970) ?
I have never had this issue with CF7 before, and I have used the same setup on many sites

https://ww.wp.xz.cn/plugins/contact-form-7/