Your app is crashing. Here's the latest log:

The `stylus` package has been deprecated.

To continue using the last supported version
of this package, pin your package version to
2.513.14 (`meteor add stylus@=2.513.14`).
SyncedCron: Scheduled "Send notifications about new messages in study groups daily:" next run @Wed Dec 08 2021 06:00:00 GMT+0000 (Coordinated Universal Time)
SyncedCron: Scheduled "Send notifications about new messages in study groups weekly:" next run @Mon Dec 13 2021 06:00:00 GMT+0000 (Coordinated Universal Time)
SyncedCron: Scheduled "Send notifications about new messages in study groups monthly:" next run @Fri Dec 31 2021 00:00:00 GMT+0000 (Coordinated Universal Time)
Started your app.

App running at: http://www.codermania.com
fs.js:153
    throw new ERR_INVALID_CALLBACK(cb);
    ^

TypeError [ERR_INVALID_CALLBACK] [ERR_INVALID_CALLBACK]: Callback must be a function. Received undefined
    at makeCallback (fs.js:153:11)
    at Object.unlink (fs.js:1125:14)
    at packages/ongoworks_spiderable.js:169:12
    at ChildProcess.exithandler (child_process.js:315:5)
    at ChildProcess.emit (events.js:314:20)
    at ChildProcess.EventEmitter.emit (domain.js:483:12)
    at maybeClose (internal/child_process.js:1022:16)
    at Socket.<anonymous> (internal/child_process.js:444:11)
    at Socket.emit (events.js:314:20)
    at Socket.EventEmitter.emit (domain.js:483:12)
    at Pipe.<anonymous> (net.js:675:12) {
  code: 'ERR_INVALID_CALLBACK'
}
Exited with code: 1
Your application is crashing. Waiting for file change.