Apple has released iOS 9.3.1, which fixes the web link error that cropped up in the wake of the release of iOS 9.3. The update is available over-the-air, or through iTunes.
iOS 9.3.1 contains the following changes:
Fixes an issue that caused apps to be unresponsive after tapping on links in Safari and other apps
The issue in question causes certain first- and third-party apps to crash when tapping or long-pressing web links in some versions of iOS 9.
This update comes over a week after the release of iOS 9.3, which added several new features and enhancements to the iOS experience, including Night Shift and education improvements.