PayPal Commerce v1.4.4

[yonghan79]

Hi core devs,

i am getting:

Code Select Expand

Paypal webhook PAYMENT.CAPTURE.COMPLETED: order ID 15297
Paypal related OrderId: 5UY95258CG8521246 but not found in the database.
what may cause the error and what is the fix?

apparently the error is on some random orders, could it caused by the buy now button?

thanks

[yonghan79]

Or is it possible when a customer makes multiple payment attempts cause the error?