Travel South Yorkshire said machines were unavailable earlier this afternoon due to "technical issues".
But the organisation said all kiosks were up and running as of 6.30pm and asked any passengers with any issues to visit a customer service desk.
Ticket machines at South Yorkshire interchanges back up and running
Ticket purchasing machines at travel interchanges across South Yorkshire are back up and running following a technical fault.
By The Newsroom
Saturday, 2nd June 2018, 6:35 pm
Updated Saturday, 2nd June 2018, 6:42 pm