Paytm had delisted its app from Apple’s app store temporarily yesterday as it tried to fix a bug, the company informed in a blog post. “Today we found a bug in our iOS App where certain app users were not able to pay thereby hanging their app. Soon the system logged them out preventing them from further accessing their account,” Paytm said.

Many customers had complained that they weren’t able to access Paytm to make payments. The company said that this was limited to iOS users and that services were working fine for Android and web.

The company stopped adding incremental new users to their existing base. When we checked, Paytm’s app was back on the on Apple’s app store. CEO Vijay Shekhar Sharma took to Twitter to inform other users.

Following the demonetization of Rs 500 and Rs 1000 notes, the company has claimed a surge in the number of transactions on the app. This has left a strain on Paytm’s systems and last week the company claimed at 19.5 times traffic on the wallet system.

Currently, it also claims to have an user base of 170 million but Deppak Abbot senior vice president of product growth gave an indication of active users last month.