Your motorbike sold twice because it was listed twice.
Did you have a non payer and forgot to cancel the listing? You need to cancel the order after 4 days of non payment citing Buyer Has Not Paid this will refund you any seller fees too.
Whatever happened you did list it twice as the title heading is slightly different so is the main photo.
Listing fees are non refundable you will have to pay both fees.
@alaros_3