ขอสอบถามค่ะ คือกราฟไม่แสดงค่า เมื่อลองรันขึ้น sever จริง แก้ไขยังไงคะ

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            title: {
                text: 'Average PM 2.5  (ug/m3) and PM 10 (ug/m3) 1 hr. '
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