incorrect operation of the automatic test playwright

Hello.
When running the playwright test locally, everything is fine. When I run it on gitlab, I get an error. However, sometimes the test passes. After the trace - I see that the test is trying to enter the site, but it stops on a white screen and does not go any further.
I contacted the developers of the library. There is no mistake on their part. Perhaps the problem arises due to incorrect settings and test simply does not go to the page due to a firewall or something like that. Please, help me with it. If you need additional information, I will gladly provide it.

This is test-e2e-prod in gitlab-ci

image: node:14

variables:
  IMAGE_VERSION: 0.11.17
  PROD_IMAGE_VERSION: prod-$IMAGE_VERSION

stages:
  - build
  - push
  - deploy
  - test

build-app:
  stage: build
  script:
    - npm i
    - CI=false npm run build
    - cd server && npm i
    - npm run test
  only:
    - master
    - production
  except:
    - schedules
  cache:
    key: '$CI_PROJECT_NAME'
    paths:
      - node_modules/
      - build/
      - server/node_modules/

build-docker-integration:
  image:
    name: gcr.io/kaniko-project/executor:debug
    entrypoint: ['']
  stage: push
  variables:
    IMAGE_TAG: $CI_REGISTRY_IMAGE:$IMAGE_VERSION
    TEST_IMAGE_TAG: $CI_REGISTRY_IMAGE:test-$IMAGE_VERSION
  script:
    - mkdir -p /kaniko/.docker
    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $IMAGE_TAG
  only:
    - master
  cache:
    key: '$CI_PROJECT_NAME'
    policy: pull
    paths:
      - node_modules/
      - build/
      - server/node_modules/
  except:
    - schedules
deploy-integration:
  image:
    name: lachlanevenson/k8s-kubectl:latest
    entrypoint: ['/bin/sh', '-c']
  stage: deploy
  variables:
    APISERVER: 'https://infort.in1.cloudjiffy.net/api'
  script:
    - sed -i "s/IMAGE_VERSION/$IMAGE_VERSION/g" ./kube/kube-deployment.yml
    - kubectl config set-cluster integration --server=$APISERVER
    - kubectl config set-context integration --cluster=integration
    - kubectl config set-credentials integration-user --token=$INTEGRATION_TOKEN
    - kubectl config set-context integration --user=integration-user
    - kubectl config use-context integration
    - kubectl config view
    - kubectl apply -f ./kube/integration --insecure-skip-tls-verify
    - kubectl apply -f ./kube/kube-deployment.yml --insecure-skip-tls-verify
    - kubectl get pods --namespace=default --insecure-skip-tls-verify
  only:
    - master
  except:
    - schedules
build-docker-production:
  image:
    name: gcr.io/kaniko-project/executor:debug
    entrypoint: ['']
  stage: push
  variables:
    IMAGE_TAG: $CI_REGISTRY_IMAGE:$PROD_IMAGE_VERSION
  script:
    - mkdir -p /kaniko/.docker
    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $IMAGE_TAG
  only:
    - production
  cache:
    key: '$CI_PROJECT_NAME'
    policy: pull
    paths:
      - node_modules/
      - build/
      - server/node_modules/
  except:
    - schedules
test-e2e:
  #when: manual
  image: mcr.microsoft.com/playwright:focal
  stage: test
  script:
    - npm config set registry http://registry.npmjs.org/
    - npm install --save-dev jest
    - npm run e2e
  only:
    - master
  except:
    - schedules
test-e2e-prod:
  #when: manual
  image: mcr.microsoft.com/playwright:focal
  stage: test
  script:
    - npm config set registry http://registry.npmjs.org/
    - npm ci
    - npm run e2e-prodPW
  artifacts:
    when: always
    paths:
      - playwright-report/
      - test-results/
  only:
    - schedules
#  image: mcr.microsoft.com/playwright:focal
#  stage: test
#  script:
#    - npm config set registry http://registry.npmjs.org/
#    - npm install --save-dev jest
#    - npm run e2e-prod
#  only:
#    - schedules
# test with playwright report >> "pl": "playwright test e2e/trace.test.js" (add to script in package.json)
#test-e2e:
#  #when: manual
#  image: mcr.microsoft.com/playwright:focal
#  stage: test
#  script:
#    - npm config set registry http://registry.npmjs.org/
#    - npm ci
#    - npm run pl
#  only:
#    - master
#  artifacts:
#    when: always
#    paths:
#      - playwright-report/
#      - test-results/
deploy-production:
  image:
    name: lachlanevenson/k8s-kubectl:latest
    entrypoint: ['/bin/sh', '-c']
  stage: deploy
  variables:
    APISERVER: 'https://89.47.58.103/api'
  script:
    - sed -i "s/IMAGE_VERSION/$PROD_IMAGE_VERSION/g" ./kube/kube-deployment.yml
    - kubectl config set-cluster production --server=$APISERVER
    - kubectl config set-context production --cluster=production
    - kubectl config set-credentials production-user --token=$PRODUCTION_TOKEN
    - kubectl config set-context production --user=production-user
    - kubectl config use-context production
    - kubectl config view
    - kubectl apply -f ./kube/production  --insecure-skip-tls-verify
    - kubectl apply -f ./kube/kube-deployment.yml  --insecure-skip-tls-verify
    - kubectl get pods --namespace=default  --insecure-skip-tls-verify
  only:
    - production
  except:
    - schedules
#  cache:
#    key: "$CI_PROJECT_NAME"
#    policy: pull
#    paths:
#      - node_modules/
#      - build/
#      - server/node_modules/