Won’t charge and dust bag error

Hi I just bought my mova v50 yesterday.  Charging is going from 9%. to 0% to 50% to 0% without any use.  Can any advise please?

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Please ensure that both ends of the power cord for the charging dock‑base station are properly plugged in. Please power off the device first, then clean the contact strips or adjust the contact position, and give it a try. If the issue still persists, since this is a brand‑new unit, please contact customer support as soon as possible for assistance. We are truly sorry for the inconvenience caused.