Is there a problem with the package or with me?

Question

webpack

I import packages in main.js, everything was fine until I installed vue-full-calendar, just "Unexpected token import" gives out, if you comment out this import and remove FullCalendar from Vue.use, then everything works,
Repa help, if you need https https://github.com/CroudTech/vue-fullcalendar

import Vue from 'vue'
import axios from 'axios'
import Vuelidate from 'vuelidate'
/* Вот эта строчка все ломает -> */ import FullCalendar from 'vue-full-calendar'
import VueAWN from "vue-awesome-notifications"
require("vue-awesome-notifications/dist/styles/style.css");
require("font-awesome/css/font-awesome.css");

Vue.use(Vuelidate, FullCalendar);

let AWNoptions = {
  position: 'top-right',
  labels: {
    success: 'Успешно',
    alert: 'Ошибка'
  }
  
}

Vue.use(VueAWN, AWNoptions)

console.log which doesn't explain anything

spoiler