Kardinal-manager pod is failing with error 'Error 1016 / failed to verify certificate' in local setup

Hi Team,
I tried setting up Kardinal in local kubernetes cluster. But the Kardinal-manager is failing with following error :

DEBU[2024-10-23T07:27:02Z][fetcher.go:Run] New fetcher execution at 2024-10-23 07:27:02.977951888 +0000 UTC m=+10.009944256
FATA[2024-10-23T07:27:04Z][main.go:main] An error occurred while running the fetcher!
Error was: Failed to fetch and apply the cluster configuration
 --- at kardinal.kontrol/kardinal-manager/fetcher/fetcher.go:52 (fetcher.Run) ---
Caused by: An error occurred fetching cluster resources from cloud
 --- at kardinal.kontrol/kardinal-manager/fetcher/fetcher.go:61 (fetcher.fetchAndApply) ---
Caused by: Error fetching cluster resources from endpoint 'https://app.kardinal.dev/api/tenant/fe9221de-43c7-4603-b6dd-4e3bc2a0a797/cluster-resources'
 --- at kardinal.kontrol/kardinal-manager/fetcher/fetcher.go:83 (fetcher.getClusterResourcesFromCloud) ---
Caused by: Get "https://app.kardinal.dev/api/tenant/fe9221de-43c7-4603-b6dd-4e3bc2a0a797/cluster-resources": tls: failed to verify certificate: x509: certificate signed by unknown authority

I tried opening app.kardinal.dev in the browser and it is giving error : ‘Error 1016 : Cloudflare is currently unable to resolve your requested domain (app.kardinal.dev)’
How to fix this error? Do I need to change this endpoint to something else?