Cloud Build Deployment Failure to Cloud Run After Service Account Deletion

I’m facing an issue where my Cloud Run service is working, but new commits are not showing because the latest changes are not being deployed. When I checked Cloud Build, I saw an error. Can anyone help me understand what’s going on?

Also, please let me know what roles and permissions are required. I think I may have accidentally deleted the default service account.

I don’t have a cloudbuild.yaml file in my repo — I only have a Dockerfile.