Error 'ClientError: newBrand is not allowed by the schema' when trying to insert on ValidatedMethod

1

I’m trying to refactor some old code I have lying around, and I’m trying to change all my methods to ‘ValidatedMethods’ but I’m having some issues with what I suppose is the validation, this are the files I have:

The defined schema:

import SimpleSchema from 'simpl-schema';
import 'uniforms-bridge-simple-schema-2';

import ImageField from '../../ui/components/ImageField';

const BrandsSchema = new SimpleSchema({
  name: {
    type: String,
  },
  active: {
    type: Boolean,
    defaultValue: true,
  },
  logo: {
    type: Object,
    uniforms: ImageField,
  },
  'logo.url': String,
  'logo.public_id': String,
  slug: {
    type: String,
    autoValue() {
      const name = this.field('name').value;
      console.log('Acá andamos...');
      console.log(this.field);
      return name
        .toString()
        .toLowerCase()
        .replace(/\s+/g, '-') // Replace spaces with -
        .replace(/[^\w\-]+/g, '') // Remove all non-word chars
        .replace(/\-\-+/g, '-') // Replace multiple - with single -
        .replace(/^-+/, '') // Trim - from start of text
        .replace(/-+$/, ''); // Trim - from end of text
    },
  },
});

export default BrandsSchema;

The validating method:

export const addBrand = new ValidatedMethod({
  name: 'brands.insert',
  validate: BrandsSchema.validator(),
  run({ newBrand }) {
    if (!this.userId) {
      throw new Meteor.Error('unauthorized-user');
    }
    if (!this.userId && !Roles.userIsInRole(this.userId, 'admin')) {
      throw new Meteor.Error('unauthorized-user-permission-group');
    }
    return Brands.insert(newBrand);
  },
});

I’m sending the data using a Vzco Autoform like this:

const addBrandFromForm = (newBrand) => {
  addBrand.call(
    {
      newBrand,
    },
    (err) => {
      if (err) {
        console.log(err);
      } else {
        // success!
      }
    },
  );
};

const AdminBrandsNew = () => (
  <div>
    <h1 className="page-header">Agregar Marca</h1>
    <AutoForm
      ref={ref => (this.formRef = ref)}
      schema={BrandsSchema}
      onSubmit={doc => addBrandFromForm(doc)}
    />
  </div>
);

But whenever I try to insert anything I get this error:
ClientError: newBrand is not allowed by the schema

Any ideas about what could be causing this error?

Thanks in advance.