Не удалось загрузить ресурс: ошибка net :: ERR_CONNECTION_REFUSED в приложении Angular - NodeJS

Question

Я пытаюсь развернуть свое приложение Angular - NodeJS. Я использовал nginx для Angular и PM2 для NodeJS. Когда я проверяю адрес localhost:3000 на сервере, используя туннель через S SH (это созданный мной туннельный адрес: localhost:3030), появляется приветственное сообщение Express! Но когда я пытаюсь увидеть первую страницу веб-сайта, я получаю следующие сообщения об ошибках:

main-es2015.ed4c44a5d40d8e87ff1d.js:1 GET http://localhost:3000/images/static/footer.jpeg net::ERR_CONNECTION_REFUSED
lookupStyle @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
willDisplay @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
updateWithValue @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
updateElement @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
setValue @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
setValue @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
ngOnChanges @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Fa.t.type.ngOnChanges.t.onChanges @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
En @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Dn @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Tn @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Sr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
xr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
template @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Hr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
co @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
co @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Fr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
po @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
detectChanges @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
tick @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
_loadComponent @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
bootstrap @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
_moduleDoBootstrap @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
invoke @ polyfills-es2015.690002c25ea8557bb4b0.js:1
onInvoke @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
invoke @ polyfills-es2015.690002c25ea8557bb4b0.js:1
run @ polyfills-es2015.690002c25ea8557bb4b0.js:1
(anonymous) @ polyfills-es2015.690002c25ea8557bb4b0.js:1
invokeTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
onInvokeTask @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
invokeTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
runTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
m @ polyfills-es2015.690002c25ea8557bb4b0.js:1
Promise.then (async)
k @ polyfills-es2015.690002c25ea8557bb4b0.js:1
scheduleTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
scheduleTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
scheduleMicroTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
Z @ polyfills-es2015.690002c25ea8557bb4b0.js:1
then @ polyfills-es2015.690002c25ea8557bb4b0.js:1
bootstrapModule @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
zUnb @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
l @ runtime-es2015.1eba213af0b233498d9d.js:1
0 @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
l @ runtime-es2015.1eba213af0b233498d9d.js:1
t @ runtime-es2015.1eba213af0b233498d9d.js:1
r @ runtime-es2015.1eba213af0b233498d9d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Show 14 more frames
localhost:3000/images/static/Logo.jpeg:1 GET http://localhost:3000/images/static/Logo.jpeg net::ERR_CONNECTION_REFUSED
Image (async)
setProperty @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
setProperty @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
qr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
ra @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
ia @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
template @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Hr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
co @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
co @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Yr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Fr @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
po @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
detectChanges @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
tick @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
invoke @ polyfills-es2015.690002c25ea8557bb4b0.js:1
onInvoke @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
invoke @ polyfills-es2015.690002c25ea8557bb4b0.js:1
run @ polyfills-es2015.690002c25ea8557bb4b0.js:1
run @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
next @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
i @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
__tryOrUnsub @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
next @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
_next @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
next @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
next @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
emit @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Ul @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
onHasTask @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
hasTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
_updateTaskCount @ polyfills-es2015.690002c25ea8557bb4b0.js:1
_updateTaskCount @ polyfills-es2015.690002c25ea8557bb4b0.js:1
runTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
m @ polyfills-es2015.690002c25ea8557bb4b0.js:1
Promise.then (async)
k @ polyfills-es2015.690002c25ea8557bb4b0.js:1
scheduleTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
scheduleTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
scheduleMicroTask @ polyfills-es2015.690002c25ea8557bb4b0.js:1
Z @ polyfills-es2015.690002c25ea8557bb4b0.js:1
then @ polyfills-es2015.690002c25ea8557bb4b0.js:1
bootstrapModule @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
zUnb @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
l @ runtime-es2015.1eba213af0b233498d9d.js:1
0 @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
l @ runtime-es2015.1eba213af0b233498d9d.js:1
t @ runtime-es2015.1eba213af0b233498d9d.js:1
r @ runtime-es2015.1eba213af0b233498d9d.js:1
(anonymous) @ main-es2015.ed4c44a5d40d8e87ff1d.js:1
Show 12 more frames
localhost:3000/images/static/Home.jpeg:1 GET http://localhost:3000/images/static/Home.jpeg net::ERR_CONNECTION_REFUSED

Я также вижу изображения по адресу, в котором указано, что изображения нет (например, http://localhost:3030/images/static/footer.jpeg)!

Когда я проверяю pm2 list, он также показывает, что приложение NodeJS и база данных MongoDB подключены к сети:

│ 1  │ mongo              │ fork     │ 0    │ online    │ 0.5%     │ 99.1mb   │
│ 2  │ www                │ fork     │ 0    │ online    │ 0.4%     │ 57.1mb  

Я не знаю, почему это происходит и как я могу исправить это?