Unable to create fleet by clicking on Deploy button

[AkshayChikhalkar]

If try to deploy the balenaSound using the deploy button on this page "https://hub.balena.io/apps/1767644/balenaSound", there is an error.
Though it is able to create a fleet, it can only flash barebone balenaOS

To Reproduce
Steps to reproduce the behaviour:

1. Go to 'https://dashboard.balena-cloud.com/login'
2. Enter login credentials
3. Clock on Login
4. Go to 'https://hub.balena.io/apps/1767644/balenaSound'
5. Click on 'Deploy' -> It will forward you to the "Deploy to existing fleet" dialog
6. Click on 'Deploy to feet'
7. There you can see the error 'Error: Failed to fetch tarball from passed URL' in the top right corner.

Expected behavior
It was expected to start installing balena sound libs/packages on boot but nothing happened.

Screenshots

Device information

• Board (hardware info): Raspberry Pi 4
• Device type (as seen in balenaCloud): Raspberry Pi 4 (using 64bit OS)
• balenaOS version: [e.g. balenaOS v6.1.24+rev5]