Trying to figure out how I can find the syntaxerror
2021-11-16T01:21:45.288923+00:00 app[worker.1]: SyntaxError: Unexpected token '??='
2021-11-16T01:21:45.288923+00:00 app[worker.1]: at wrapSafe (internal/modules/cjs/loader.js:1001:16)
2021-11-16T01:21:45.288923+00:00 app[worker.1]: at Module._compile (internal/modules/cjs/loader.js:1049:27)
2021-11-16T01:21:45.288924+00:00 app[worker.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
2021-11-16T01:21:45.288924+00:00 app[worker.1]: at Module.load (internal/modules/cjs/loader.js:950:32)
2021-11-16T01:21:45.288924+00:00 app[worker.1]: at Function.Module._load (internal/modules/cjs/loader.js:790:12)
2021-11-16T01:21:45.288925+00:00 app[worker.1]: at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12)
2021-11-16T01:21:45.288925+00:00 app[worker.1]: at internal/main/run_main_module.js:17:47
2021-11-16T01:21:45.397389+00:00 heroku[worker.1]: Process exited with status 1
2021-11-16T01:21:45.437943+00:00 heroku[worker.1]: State changed from up to crashed