Please contact your merchant provider, IATS, for additional assistance. 

Note: if the transaction results in this error, the transaction data will likely not be sent into the NetCommunity plugin. 

It is possible that IATS may automatically charge the card at a later time, but again you should contact IATS for the details as to why. 

If the error occurs, and IATS charges the card at a later time, the data will still not be sent into the NetCommunity plugin because NetCommunity has already closed the purchase window for when it accepts and sends transaction data.