deployed react app to heroku sucessfully but when i open app it says Application error

Question

`2023-03-11T06:18:45.885222+00:00 heroku[web.1]: Starting process with command `npm start` 2023-03-11T06:18:49.167329+00:00 app[web.1]: 2023-03-11T06:18:49.167357+00:00 app[web.1]: > burn-dashboard-app@0.1.0 start 2023-03-11T06:18:49.167358+00:00 app[web.1]: > react-scripts start 2023-03-11T06:18:49.167358+00:00 app[web.1]: 2023-03-11T06:18:53.032182+00:00 app[web.1]: (node:27) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. 2023-03-11T06:18:53.032202+00:00 app[web.1]: (Use `node --trace-deprecation ...` to show where the warning was created) 2023-03-11T06:18:53.032432+00:00 app[web.1]: (node:27) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. 2023-03-11T06:18:53.380649+00:00 heroku[web.1]: State changed from starting to up 2023-03-11T06:18:53.530013+00:00 app[web.1]: Starting the development server... 2023-03-11T06:18:53.530036+00:00 app[web.1]: 2023-03-11T06:19:26.090998+00:00 app[web.1]: 2023-03-11T06:19:26.091010+00:00 app[web.1]: <--- Last few GCs ---> 2023-03-11T06:19:26.091010+00:00 app[web.1]: 2023-03-11T06:19:26.091028+00:00 app[web.1]: [27:0x6f24fb0] 36378 ms: Mark-sweep (reduce) 238.5 (250.0) -> 238.4 (250.0) MB, 232.5 / 0.0 ms (average mu = 0.444, current mu = 0.001) last resort; GC in old space requested 2023-03-11T06:19:26.091028+00:00 app[web.1]: [27:0x6f24fb0] 36670 ms: Mark-sweep (reduce) 238.4 (250.0) -> 238.3 (250.0) MB, 291.6 / 0.0 ms (average mu = 0.280, current mu = 0.000) last resort; GC in old space requested 2023-03-11T06:19:26.091028+00:00 app[web.1]: 2023-03-11T06:19:26.091068+00:00 app[web.1]: 2023-03-11T06:19:26.091068+00:00 app[web.1]: <--- JS stacktrace ---> 2023-03-11T06:19:26.091069+00:00 app[web.1]: 2023-03-11T06:19:26.091086+00:00 app[web.1]: FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory 2023-03-11T06:19:26.092014+00:00 app[web.1]: 1: 0xb7b3f0 node::Abort() [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.092735+00:00 app[web.1]: 2: 0xa8c89a [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.093518+00:00 app[web.1]: 3: 0xd631b0 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.094289+00:00 app[web.1]: 4: 0xd63557 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.095159+00:00 app[web.1]: 5: 0xf2ed8f v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.096015+00:00 app[web.1]: 6: 0xf0f150 v8::internal::Factory::AllocateRaw(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.096860+00:00 app[web.1]: 7: 0xf06bc4 v8::internal::FactoryBase<v8::internal::Factory>::AllocateRawWithImmortalMap(int, v8::internal::AllocationType, v8::internal::Map, v8::internal::AllocationAlignment) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.097672+00:00 app[web.1]: 8: 0xf08f58 v8::internal::FactoryBase<v8::internal::Factory>::NewRawTwoByteString(int, v8::internal::AllocationType) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.098577+00:00 app[web.1]: 9: 0x11e4bb5 v8::internal::String::SlowFlatten(v8::internal::Isolate*, v8::internal::Handle<v8::internal::ConsString>, v8::internal::AllocationType) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.099307+00:00 app[web.1]: 10: 0xd6efbc v8::String::Utf8Length(v8::Isolate*) const [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.099985+00:00 app[web.1]: 11: 0xb4ce17 [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.100751+00:00 app[web.1]: 12: 0xdc12a0 [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.101515+00:00 app[web.1]: 13: 0xdc27df v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*) [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.102537+00:00 app[web.1]: 14: 0x1700679 [/app/.heroku/node/bin/node] 2023-03-11T06:19:26.174562+00:00 app[web.1]: npm notice 2023-03-11T06:19:26.174729+00:00 app[web.1]: npm notice New minor version of npm available! 9.5.0 -> 9.6.1 2023-03-11T06:19:26.175085+00:00 app[web.1]: npm notice Changelog: <https://github.com/npm/cli/releases/tag/v9.6.1> 2023-03-11T06:19:26.178704+00:00 app[web.1]: npm notice Run `npm install -g npm@9.6.1` to update! 2023-03-11T06:19:26.178929+00:00 app[web.1]: npm notice 2023-03-11T06:19:26.409617+00:00 heroku[web.1]: Process exited with status 1 2023-03-11T06:19:26.481165+00:00 heroku[web.1]: State changed from up to crashed 2023-03-11T06:19:26.508891+00:00 heroku[web.1]: State changed from crashed to starting 2023-03-11T06:19:39.246952+00:00 heroku[web.1]: Starting process with command `npm start` 2023-03-11T06:19:42.812987+00:00 app[web.1]: 2023-03-11T06:19:42.813016+00:00 app[web.1]: > burn-dashboard-app@0.1.0 start 2023-03-11T06:19:42.813017+00:00 app[web.1]: > react-scripts start 2023-03-11T06:19:42.813017+00:00 app[web.1]: 2023-03-11T06:19:47.240829+00:00 app[web.1]: (node:27) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. 2023-03-11T06:19:47.240848+00:00 app[web.1]: (Use `node --trace-deprecation ...` to show where the warning was created) 2023-03-11T06:19:47.241223+00:00 app[web.1]: (node:27) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. 2023-03-11T06:19:47.592049+00:00 heroku[web.1]: State changed from starting to up 2023-03-11T06:19:48.148701+00:00 app[web.1]: Starting the development server... 2023-03-11T06:19:48.148725+00:00 app[web.1]: 2023-03-11T06:20:35.175232+00:00 app[web.1]: 2023-03-11T06:20:35.175235+00:00 app[web.1]: <--- Last few GCs ---> 2023-03-11T06:20:35.175235+00:00 app[web.1]: 2023-03-11T06:20:35.175236+00:00 app[web.1]: [27:0x5f53fb0] 51633 ms: Mark-sweep (reduce) 238.6 (250.5) -> 238.5 (250.5) MB, 713.2 / 0.0 ms (average mu = 0.303, current mu = 0.000) last resort; GC in old space requested 2023-03-11T06:20:35.175237+00:00 app[web.1]: [27:0x5f53fb0] 52133 ms: Mark-sweep (reduce) 238.5 (250.5) -> 238.4 (250.5) MB, 499.3 / 0.0 ms (average mu = 0.183, current mu = 0.000) last resort; GC in old space requested 2023-03-11T06:20:35.175237+00:00 app[web.1]: 2023-03-11T06:20:35.175321+00:00 app[web.1]: 2023-03-11T06:20:35.175322+00:00 app[web.1]: <--- JS stacktrace ---> 2023-03-11T06:20:35.175322+00:00 app[web.1]: 2023-03-11T06:20:35.175340+00:00 app[web.1]: FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory 2023-03-11T06:20:35.176335+00:00 app[web.1]: 1: 0xb7b3f0 node::Abort() [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.179725+00:00 app[web.1]: 2: 0xa8c89a [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.183782+00:00 app[web.1]: 3: 0xd631b0 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.184588+00:00 app[web.1]: 4: 0xd63557 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.195042+00:00 app[web.1]: 5: 0xf2ed8f v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.197922+00:00 app[web.1]: 6: 0xf0f150 v8::internal::Factory::AllocateRaw(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.203753+00:00 app[web.1]: 7: 0xf06bc4 v8::internal::FactoryBase<v8::internal::Factory>::AllocateRawWithImmortalMap(int, v8::internal::AllocationType, v8::internal::Map, v8::internal::AllocationAlignment) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.204609+00:00 app[web.1]: 8: 0xf08f58 v8::internal::FactoryBase<v8::internal::Factory>::NewRawTwoByteString(int, v8::internal::AllocationType) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.215920+00:00 app[web.1]: 9: 0x11e4bb5 v8::internal::String::SlowFlatten(v8::internal::Isolate*, v8::internal::Handle<v8::internal::ConsString>, v8::internal::AllocationType) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.219864+00:00 app[web.1]: 10: 0xd6efbc v8::String::Utf8Length(v8::Isolate*) const [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.220580+00:00 app[web.1]: 11: 0xb4ce17 [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.221356+00:00 app[web.1]: 12: 0xdc12a0 [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.226765+00:00 app[web.1]: 13: 0xdc27df v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*) [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.232040+00:00 app[web.1]: 14: 0x1700679 [/app/.heroku/node/bin/node] 2023-03-11T06:20:35.350497+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/" host=burn-dashboard.herokuapp.com request_id=c3a856bf-c3e3-4510-ab18-d0f4fc12c5a4 fwd="197.210.55.44" dyno=web.1 connect=0ms service=5426ms status=503 bytes=0 protocol=https 2023-03-11T06:20:35.368851+00:00 app[web.1]: npm notice 2023-03-11T06:20:35.368986+00:00 app[web.1]: npm notice New minor version of npm available! 9.5.0 -> 9.6.1 2023-03-11T06:20:35.369264+00:00 app[web.1]: npm notice Changelog: <https://github.com/npm/cli/releases/tag/v9.6.1> 2023-03-11T06:20:35.369378+00:00 app[web.1]: npm notice Run `npm install -g npm@9.6.1` to update! 2023-03-11T06:20:35.369594+00:00 app[web.1]: npm notice 2023-03-11T06:20:35.581680+00:00 heroku[web.1]: Process exited with status 1 2023-03-11T06:20:35.644158+00:00 heroku[web.1]: State changed from up to crashed 2023-03-11T06:20:40.864941+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=burn-dashboard.herokuapp.com request_id=1c14817e-1f69-4201-bb73-45c2a7aade0e fwd="197.210.55.44" dyno=web.1 connect=5000ms service= status=503 bytes= protocol=https ` expecting the app to run but it returns application error