Smart pet-feeder company Petlibro suffered an outage on Tuesday, giving users a harsh reminder of the risks of relying on smart devices.

Petlibro makes pet feeders that connect to Wi-Fi and, for setup with Petlibro’s mobile companion app, Bluetooth. Users can set the feeders to automatically dispense food at scheduled times, which is handy for pet care when the owner is out of the home.

In a statement to The Verge, Petlibro CEO York Wu said this week’s outage was “related to how the Petlibro app communicates with devices through its online servers.”

Petlibro first acknowledged problems on Tuesday at 5 am PT. It said via a status page that it was “investigating a service disruption affecting the Petlibro app. Some users experienced difficulty accessing the app or controlling devices remotely.”

At 7 pm PT on Tuesday, Petlibro said it “identified a service issue affecting app access and responsiveness for some users” and “began recovery work and system validation.”

Petlibro claims that as of 7 pm PT on Wednesday, “app services have been fully restored and are operating normally.”

“After several hours of monitoring and a full cycle of routine performance, we are confident that the service disruption has been resolved. Our team will continue reviewing the incident over the coming days to better understand the cause and identify improvements to help prevent similar disruptions in the future,” the support page reads.

The page also notes that previously saved schedules should run, but “some activity data may be unavailable,” adding:

Certain records generated during the disruption may not be recoverable, including some device operation history, feeding or litter box records, notifications, cloud-stored videos, and highlight videos.

Wu told The Verge that features requiring an app connection to work, such as the app’s “Feed Now” button, may still be disrupted.