Duplicated payments from clients

Hi,

I’m having some issues with Terawallet; sometimes, when a client does a purchase using the money on their wallet, it will charge them double. I.e., it will take the money from their wallets twice, sometimes even more than two times.
So if a client purchases something that costs $20, it may happen that the plugin takes that money from their wallet twice, and so the client would have two payments with id 344, $20 dollars each, and a total of $40 less on their wallet.

Example here

It does not happen always, just randomly. I hope the issue explanation is clear enough and someone can provide me with a solution.

Thank you.

The page I need help with: [log in to see the link]