Can't deploy site to GitHub pages

[EmilyGraceSeville7cf]

Hello! When I want to deploy my personal site I obtain this error:

The minimal-mistakes-jekyll theme could not be found. (Jekyll::Errors::MissingDependencyException)

How to fix this problem? Everything works locally. My cd.yml is:

name: Continuous Deployment
on:
  push:
    branches: [ master ]
  workflow_dispatch:

jobs:
  github-pages:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}
          restore-keys: "{{ runner.os }}-gems-"
      - uses: helaili/jekyll-action@v2
        with:
          token: ${{ secrets.GITHUB_TOKEN }}

I've used this template and slightly changed it: I used new versions of actions.

I use Ruby 2.7.0p0 and Jekyll 4.2.2.