Your Hobby subscription is currently inactive, which is why deployments are not going through. This is not related to GitHub. You can resubscribe from your workspace billing page to restore deploy access.

i still got trial credit

Your account does show a $5.00 credit balance, but your Hobby subscription is inactive with no completed payment on file, so deployments are blocked regardless of credit. You can complete your subscription setup from your workspace billing page, and the existing credit will apply toward your usage once the plan is active.