Why is the getter not working?

Question

Vue.js

In general, the situation is the following.
When I start the project, an error occurs in the function

return this.getTransportFields.reduce((data, f) => ({ ...data, [f.name]: f.value }), {})

She flies out because
console.log(this.getTransportFields) // undefined

getTransportFields() {
    return this.$store.getters['getTransportFields']
},

Here is the getter

getTransportFields(state) {
    return state.FIELDS.formFieldsMap
  },

The state.FIELDS.formFieldsMapdata is

Answer 1

The state.FIELDS.formFieldsMapdata is

Do they really lie? - maybe they do not lie, but are loaded by means of a request to the database or somewhere else. In the meantime, it has not loaded, FIELDS is an empty object, it does not have any formFieldsMap property. Accordingly, the getter returns undefined. Could this be?
UPD. Taken from the comments:
You can return a stub if there is nothing, for example:

getters: {
  transportFields: state => state.FIELDS.formFieldsMap || [],
  ...

Better yet, create the desired property in FIELDS in advance, with an empty array as the initial value.

Answer 2

Try the name of the getter without get?