0đź‘Ť
You access email from a “user” object in the template:
<v-col cols="12" md="4">
<VTextFieldWithValidation
label="Correo ElectrĂłnico"
color="secondary"
prepend-icon="mdi-at"
rules="required|email"
:value="user.email"
/>
But your user isn’t defined in the component. You have a computed “email” which you probably want to use to get the users email. So, remove the user and use your computed email.
Source:stackexchange.com