Donate Button in About Screen does Nothing

Expected Behavior

The Donate button in the About screen takes the User to a location where they can donate to the developer.

Actual Behavior

Nothing happens when the User taps the Donate button on the About screen.

How to Reproduce

1. Launch Defendo 2.5.0 on Android 8.1.0
2. Tap About
3. Tap Donate

Device: Pixel 2 XL
OS: Android 8.1.0
App Version: 2.5.0

Recording of the Bug