Cannot deploy a nextjs project with pnpm package.

I am trying to deploy a Next.js project, but I keep receiving this message: "Cannot install with 'frozen-lockfile' because pnpm-lock.yaml is absent." The problem is that, based on my project structure, the pnpm-lock.yaml file is indeed there (I have provided a screenshot as proof). I am using Next.js v15.0. While searching for solutions, I found that I can bypass this issue by adding the following line in the ENV configuration: NIXPACKS_INSTALL_CMD=pnpm install --no-frozen-lockfile. However, after doing this, I am unable to access my page through the domain. After some investigation, I discovered that in the Traefik file system, there is no record of my domain in the acme.json file—only .yml files in the dynamic folder.