When a guest user book an event with already existing email it will successfully added.

[jeenaa]

Describe the bug When a guest user book an event with already existing email it will successfully added. To Reproduce

1. Go to 'https://test-app.nullcast.dev/events'
2. Click on an event
3. Add details
4. click on the submit button
5. See error

Expected behavior User should get a toast message

Screenshots

Desktop (please complete the following information):HP

• OS: Windows
• Browser: chrome
• Version :98.0.4758.10298.0.4758.102

Smartphone (please complete the following information): Not tested

Additional context Add any other context about the problem here.