使用 Firebase 数据库部署 Spring-boot 后应用程序错误

Question

I am new to Spring boot framework and after deploying the app using Heroku I am facing the following issue.

Note: This app uses Firebase database

2021-01-25T17:48:11.487535+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=clean-drop-solution-api.herokuapp.com reques
t_id=f20fd4cc-db5d-42b3-8da2-d296d8d7f977 fwd="116.72.65.138" dyno= connect= service= status=503 bytes= protocol=https
2021-01-25T17:48:12.032290+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=clean-drop-solution-api.herokuapp
.com request_id=7718dda2-023d-4613-b2cb-b22cc2e0ece9 fwd="116.72.65.138" dyno= connect= service= status=503 bytes= protocol=https
2021-01-25T17:50:06.076151+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=clean-drop-solution-api.herokuapp.com reques
t_id=d817a0b1-c126-4ae0-926b-363e501cb680 fwd="116.72.65.138" dyno= connect= service= status=503 bytes= protocol=https
2021-01-25T17:50:06.395744+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=clean-drop-solution-api.herokuapp
.com request_id=4d5648bd-ff29-40d1-b88a-6e1cde09f319 fwd="116.72.65.138" dyno= connect= service= status=503 bytes= protocol=https
2021-01-25T18:12:08.016926+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=clean-drop-solution-api.herokuapp.com reques
t_id=0e6a61a4-1e7d-496b-89fd-09f85ad22e90 fwd="116.72.65.138" dyno= connect= service= status=503 bytes= protocol=https
2021-01-25T18:12:08.393972+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=clean-drop-solution-api.herokuapp
.com request_id=7ed78a4d-2241-42fe-bd37-6c0bf538d42b fwd="116.72.65.138" dyno= connect= service= status=503 bytes= protocol=https```