If you experience the error code -11800, often accompanied by one of the following messages:
A problem occurred while playing this item. Try again later, or select a different item. Go to www.netflix.com/support for more information.
Cannot play title. Please try again later.
It typically points to information stored on your device that needs to be refreshed. Follow the troubleshooting steps for your device below to resolve the issue.
Press and hold the side button and one of the volume buttons at the same time until the sliders appear. Drag the top slider to turn your device completely off.
If the sliders don't appear, press and hold the Sleep/Wake button until the red slider appears, then drag the slider.
After 10 seconds, press the Sleep/Wake button.
Once your device powers on, try Netflix again.
Go to the home screen, then tap App Store.
Tap Search, and enter "Netflix".
In the list, find and tap Netflix, then tap Update. You may need to enter your Apple ID password. If you forgot it, follow Apple's steps to reset it.