[BUG] When clicking on "Notify numbers" option the application crashes immediately..

[eraydurmus]

Describe the bug Click on the "CONFIGURE" button and then click on the "Notify numbers" option, you will see the application crashes.

To Reproduce Steps to reproduce the behavior:

1. Open the app.
2. Click on "configure".
3. Click on "Notify numbers".
4. See error.

Expected behavior The "Notify numbers" option should ensure that the application does not crash and is functioning properly.

Smartphone (please complete the following information):

• Device: Samsung Galaxy S6 Edge
• OS: Android 7.0
• Application version v0.4-4

Record Of The Bug https://thumbs.gfycat.com/LinearDetailedCarpenterant.webp