The Check21.com Payment Gateway experienced a Java-based error when performing ICL/X9 file generation functions. The Check21.com team was made aware of the issue at 4:50PM EST and resolved the issue at 5:15PM EST. The files were generated and transmitted at that time. Organizations which utilize Bank United or Frost Bank may have been affected - but it is unknown whether such issue impacted cash flow by one business day. Please check with your financial institution to confirm.