# Lots of errors in Logs
**URL:** https://meta.discourse.org/t/lots-of-errors-in-logs/118144
**Category:** Support
**Created:** [May 19, 2019, 1:27pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144 "2019-05-19T13:27:29Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Dmitry\_Krasnoperov](https://meta.discourse.org/u/Dmitry_Krasnoperov)
#### Post date: [May 19, 2019, 1:27pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/1 "2019-05-19T13:27:29Z")
I was curious and I enabled “Alert admins if errors per hour” = 25 errors per hour.
Now I know ☹
I’ve got tons of errors in logs
Most popular
> 502 x TypeError: Failed to construct ‘Notification’: Illegal constructor. Use ServiceWorkerRegistration.showNotification() instead.
> 76 x TypeError: Cannot read property ‘tagName’ of null
> 36 x TypeError: null is not an object (evaluating ‘r.tgt=t.outerHTML’)
And there are a lot of other errors (less frequent)
— Uncaught [object Object]
— TypeError: ‘undefined’ is not a function (evaluating ‘Ember.typeOf(String.prototype.w)’)
— Uncaught TypeError: Array.from is not a function
— Uncaught Error: Could not find module discourse-common/lib/raw-handlebars
How badly it is? How to fix it?
I do have
— DigitalOcean with 8GB
— [v2.3.0.beta9 +163]
([https://github.com/discourse/discourse/compare/99a2a769d4b030c6bcc759503b9fed774b4404f6...tests-passed](https://github.com/discourse/discourse/compare/99a2a769d4b030c6bcc759503b9fed774b4404f6...tests-passed))
— 10Gb free space
— Rebuild several times as well
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [May 19, 2019, 9:02pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/2 "2019-05-19T21:02:17Z")
Are you using third party plugins? If so, disable them and rebuild.
---
### Author:  [@j.jaffeux](https://meta.discourse.org/u/j.jaffeux)
#### Post date: [May 19, 2019, 9:11pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/3 "2019-05-19T21:11:08Z")
Updating to latest would fix some of them for sure.
If you can give me your forum URL I can have a look, some might be recent regressions, I could fix them quickly.
---
### Author:  [@davidkingham](https://meta.discourse.org/u/davidkingham)
#### Post date: [May 21, 2019, 3:10pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/4 "2019-05-21T15:10:07Z")
I’m having a similar problem. Is there any way to tell what plugins might be causing the problem? I have quite a few and it would be a painful process disabling them one by one, not to mention all the down time.
This is the most prevalent error:
```plaintext
TypeError: Object doesn't support property or method 'from'
at t (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:4:28560)
at value (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:4:30270)
at u (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:4:28825)
at r (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:4:29297)
at t (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:4:3)
at Anonymous function (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:4:29364)
at n.prototype.process (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:1:11415)
at o.prototype.parse (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:1:8585)
at o.prototype.render (https://community.naturephotographers.network/assets/markdown-it-bundle-f073c70a0d2ca47967a59723ea3876e9c19c6a2a9b34b69e3f17d44d3d9d5ac4.js:1:8656)
at p (https://community.naturephotographers.network/assets/pretty-text-bundle-69f10bf50c157b00d4ee9fce58900e53fa90f1176953113c2117ff6a9c40a6c5.js:3:27812)
```
and this:
```plaintext
TypeError: Unable to get property 'tagName' of undefined or null reference
at scrolled (https://community.naturephotographers.network/assets/application-a9e71f1edd1c0c204e24171f735f84503eb20246e13b2899ef434c24d37d07c2.js:33:26513)
at t.invoke (https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:16:6925)
at t.flush (https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:16:5868)
at t.flush (https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:16:7971)
at r._end (https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:16:12650)
at r.end (https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:16:9312)
at r._runExpiredTimers (https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:16:13982)
```
and this:
```plaintext
s@https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:9:7120
a@https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:9:6977
o@https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:9:6868
trigger@https://community.naturephotographers.network/assets/ember_jquery-0ae86c6a7527a99c2b9b8a11521273bd9cb4f7d41bc546df081b7ee94f26d9c3.js:18:3641
pe
### Author:  [@Dmitry\_Krasnoperov](https://meta.discourse.org/u/Dmitry_Krasnoperov)
#### Post date: [May 21, 2019, 6:49pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/5 "2019-05-21T18:49:28Z")
> [@codinghorror](#):
>
> Are you using third party plugins? If so, disable them and rebuild.
I have only one plugin enabled. [discourse-vk-auth](https://github.com/discourse/discourse-vk-auth)
---
### Author:  [@Falco](https://meta.discourse.org/u/Falco)
#### Post date: [May 21, 2019, 7:42pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/6 "2019-05-21T19:42:53Z")
Some JS bugs are legitimate ones, but 90% of what you see there is caused by broken browsers, broken extensions, etc.
Unless you can provide proper reproduction steps, pasting random JS errors here won’t give us much.
---
### Author:  [@j.jaffeux](https://meta.discourse.org/u/j.jaffeux)
#### Post date: [May 21, 2019, 7:45pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/7 "2019-05-21T19:45:47Z")
> [@davidkingham](#):
>
> TypeError: Unable to get property ‘tagName’ of undefined or null reference
This one should be fixed by [FIX: ensures we have an elementFromPoint before using it (#7583) · discourse/discourse@0ed1cfd · GitHub](https://github.com/discourse/discourse/commit/0ed1cfd8d92b1a60767f5f5aba51b071d63ebde8)
---
### Author:  [@Falco](https://meta.discourse.org/u/Falco)
#### Post date: [May 23, 2019, 4:27pm UTC](https://meta.discourse.org/t/lots-of-errors-in-logs/118144/8 "2019-05-23T16:27:17Z")