SEPTA says its ticketing system is fully functional again, after a daylong glitch prevented riders from buying tickets or adding value to their SEPTA Key cards.

SEPTA spokesman Andrew Busch says a software update by its ticketing vendor Conduent disabled the system around 5 a.m. It was restored just before 3 p.m.

The glitch didn’t affect commuters who had value on their Key cards, or those who paid by app or credit card. Riders who were unable to buy new tickets were allowed to ride for free.

The transit agency is trying to tally-up how much revenue was lost because of the faulty software update.

📸: Mike DeNardo/KYW Newsradio