The Eighth Circuit Court of Appeals on Monday warned Arkansas officials that its appeal in a ruling that struck down the state's ban on gay marriage is at risk of being dismissed over an overdue fee.

On November 25, U.S. District Judge Kristine Baker sided with two lesbian couples challenging the state's decade-old ban. She put her ruling on hold as the state pursues an appeal.

“The appellant has failed to pay the Clerk of the United States District Court the requisite docketing fees,” the court wrote in an order. “Accordingly, appellant is directed to show cause, within fourteen (14) days of the date of this order, why this appeal should not be dismissed for failure to prosecute.”

According to the AP, the $505 fee was due January 21.

Attorney General Leslie Rutledge was sworn in on January 13. She blamed a clerical error for the mistake and said that the fee will be paid.

A separate challenge to the ban is before the Arkansas Supreme Court.