Build fail 128 deployment failed

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hi guys i have tried building this its giving this build fail error please help to sort out this.

12:25:54 PM: build-image version: 59029cc38debec12b365d8cde2431251b878d6bf (noble)

12:25:54 PM: buildbot version: 3e28bc4a2ea50cb9085c5b6f4123cf78ade50dc6

12:25:54 PM: Building without cache

12:25:54 PM: Starting to prepare the repo for build

12:25:55 PM: User git error while checking for ref refs/heads/main

12:25:55 PM: Failing build: Failed to prepare repo

12:25:55 PM: Failed during stage ‘preparing repo’: For more information, visit Build troubleshooting tips | Netlify Docs Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
: exit status 128

@mayuran-deriv The deploy log message says why it failed, and has a link to documentation.

Did you read the documentation that explains the error?
https://docs.netlify.com/configure-builds/troubleshooting-tips/#build-fails-with-exit-status-128

It also says what you would need to do to fix it.