我上传了我的Laravel项目在虚拟主机Heroku，但它不工作，它说：Application error An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details. You can do this from the Heroku CLI with the command heroku logs --tail当我在cmd中运行命令heroku logs --tail时，它显示：
看起来错误甚至不止一个，我真的不知道这些错误意味着什么，我在任何地方都找不到它们。

2023-02-10T20:33:34.785966+00:00 heroku[web.1]: State changed from starting to crashed
2023-02-10T20:34:07.000000+00:00 app[api]: Build succeeded
2023-02-10T20:34:07.404549+00:00 heroku[web.1]: State changed from crashed to starting
2023-02-10T20:34:10.304458+00:00 heroku[web.1]: Starting process with command `npm start`
2023-02-10T20:34:12.223124+00:00 app[web.1]:
2023-02-10T20:34:12.223146+00:00 app[web.1]: > start
2023-02-10T20:34:12.223147+00:00 app[web.1]: > if-env NODE_ENV=production && npm run start:prod || npm run start:dev
2023-02-10T20:34:12.223147+00:00 app[web.1]:
2023-02-10T20:34:12.228492+00:00 app[web.1]: sh: 1: if-env: not found
2023-02-10T20:34:12.626616+00:00 app[web.1]:
2023-02-10T20:34:12.626644+00:00 app[web.1]: > start:dev
2023-02-10T20:34:12.626646+00:00 app[web.1]: > concurrently "nodemon - -ignore 'client/*'" "npm run client"
2023-02-10T20:34:12.626646+00:00 app[web.1]:
2023-02-10T20:34:12.632186+00:00 app[web.1]: sh: 1: concurrently: not found
2023-02-10T20:34:12.794122+00:00 heroku[web.1]: Process exited with status 127
2023-02-10T20:34:12.856093+00:00 heroku[web.1]: State changed from starting to crashed
2023-02-10T20:34:14.498753+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=poradej-turnaj.herokuapp.com request_id=dbc569cd-b37e-4a45-a8cb-8e791fa59c1c fwd="84.42.219.107" dyno= connect= service= status=503 bytes= protocol=https
2023-02-10T20:34:14.675679+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=poradej-turnaj.herokuapp.com request_id=5476f6cb-67c8-4f2e-a5e2-abdbfc923cc2 fwd="84.42.219.107" dyno= connect= service= status=503 bytes= protocol=https

这里我张贴我的一些代码：package.json

{
    "private": true,
    "scripts": {    
        "start": "if-env NODE_ENV=production && npm run start:prod || npm run start:dev", 
        "start:prod": "node server.js", 
        "start:dev": "concurrently \"nodemon - -ignore 'client/*'\" \"npm run client\""
    },
    "devDependencies": {
        "@popperjs/core": "^2.11.6",
        "axios": "^0.27",
        "bootstrap": "^5.2.3",
        "laravel-vite-plugin": "^0.6.0",
        "lodash": "^4.17.19",
        "postcss": "^8.1.14",
        "sass": "^1.56.1",
        "vite": "^3.0.0"
    },
    "engines": {
        "npm": "9.4.2",
        "node": "18.13.0"
    },
    "dependencies": {
        "nodemon": "^2.0.20"
    }
}

过程文件

web: vendor/bin/heroku-php-apache2 public/

你能给予我一些建议吗？告诉我是否应该发布更多代码