apexcharts series values do not appear

Question

I’m trying to understand the value of an array I’m pulling from the back inside an apexchart chart, but it’s not returning anything, the chart appears blank

the callback

      mounted() {
        this.uChart()
  },
  methods: {
    uChart() {
      this.$axios.get("/Operacional/GetRelatorio").then(res => {
        this.$refs.chart1.updateSeries([{
          data: res.data
        }])
      });
      console.log(this.$refs.chart1)
    }
},

html code

        <div id="graphics-1" class="col-md-4">  
         <apexchart 
         ref="chart1"
         width="470" 
         height="470"
         type="donut" 
         :options="options" 
         :series="series"
         ></apexchart> 
    </div> 

array is returning values like this