Heroku构建日志和未显示错误但应用程序未显示的日志'；跑不动

我有一个托管在Heroku上的discord.js bot连接到我的GitHub存储库 当我在本地运行它时，它就工作了 Heroku日志也没有显示任何错误，但它没有启动

2020-01-08T15:57:04.151726+00:00 heroku[worker.1]: Process exited with status 0
2020-01-08T15:57:46.000000+00:00 app[api]: Build started by user ujjwalkandera23@gmail.com
2020-01-08T15:57:59.627953+00:00 heroku[worker.1]: State changed from crashed to starting
2020-01-08T15:57:59.154859+00:00 app[api]: Release v9 created by user ujjwalkandera23@gmail.com
2020-01-08T15:57:59.154859+00:00 app[api]: Deploy 85a9b9be by user ujjwalkandera23@gmail.com
2020-01-08T15:57:59.000000+00:00 app[api]: Build succeeded
2020-01-08T15:58:02.100811+00:00 heroku[worker.1]: Starting process with command `: node bot.js`
2020-01-08T15:58:02.688922+00:00 heroku[worker.1]: State changed from starting to up
2020-01-08T15:58:04.452834+00:00 heroku[worker.1]: State changed from up to crashed
2020-01-08T15:58:04.432152+00:00 heroku[worker.1]: Process exited with status 0

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您是否调用过代码？是否在任何地方记录错误？