Errors commonly occur from issues with the billing address entered with payment info for an order. Occasionally, if an address uses an apartment number, unit number, etc. it may block an order from being processed if this address isn’t entered exactly as it appears with your issuing bank.
Card authorizations can occasionally occur even if this error is present, but as these don’t have an order tied to them they should expire within 24 hours. If you still see any charges on your account we would be happy to investigate further for you.