Demo app crashes with ServerConfiguration is not provided

[MJ1998]

Describe the bug
Demo app crashes with ServerConfiguration is not provided. The demo app should also work in offline mode when there is no server configuration given.

Component
Core library, SDC library, reference app, or SDC gallery app

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Smartphone (please complete the following information):

• Device: [e.g. Pixel4a emulator]
• Android version: [e.g. Settings -> About phone -> Android version]
• Build number: [e.g. Settings -> About phone -> Build number]
• Version [e.g. 22]

Additional context
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[santosh-pingle]

@aditya-07 can you please triage the bug.