### Author:  [@Karthik\_K](https://meta.discourse.org/u/Karthik_K)
#### Post date: [2017 年 10 月 2 日午前 6:22 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/1 "2017-10-02T06:22:31Z")
I run my community at [discourse.skcript.com](http://discourse.skcript.com). Yesterday, I upgraded the platform using `./launcher rebuild app`. After the upgraded completed, users who try to access the platform without logging in are getting a blank page.
The `app.yml` is set to `test-passed` by default. When I change it to the `stable` channel, this is the error I get:
```plaintext
FAILED
--------------------
Pups::ExecError: cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate' failed with return #
Location of failure: /pups/lib/pups/exec_command.rb:108:in `spawn'
exec failed with the params {"cd"=>"$home", "hook"=>"bundle_exec", "cmd"=>["su discourse -c 'bundle install --deployment --verbose --without test --without development'", "su discourse -c 'bundle exec rake db:migrate'", "su discourse -c 'bundle exec rake assets:precompile'"]}
78b52f8ae680a31781647884748760b39c844756e8097fa3e7c3a4b0c8002c90
**FAILED TO BOOTSTRAP** please scroll up and look for earlier error messages, there may be more than one
```
Can someone please help me with this?
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [2017 年 10 月 2 日午前 9:38 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/2 "2017-10-02T09:38:36Z")
You can’t downgrade from tests-passed to stable; it doesn’t work because your DB has changed.
Disable all third party plugins and rebuild.
---
### Author:  [@Karthik\_K](https://meta.discourse.org/u/Karthik_K)
#### Post date: [2017 年 10 月 2 日午前 9:49 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/3 "2017-10-02T09:49:55Z")
Thanks for the info Jeff. Let me try that right away.
---
### Author:  [@dax](https://meta.discourse.org/u/dax)
#### Post date: [2017 年 10 月 2 日午前 10:13 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/4 "2017-10-02T10:13:58Z")
If you are using the [guest gate plugin](https://meta.discourse.org/t/guest-gate-sign-up-popup-plugin/56625) then disable it, it’s broken and give you a blank page.
---
### Author:  [@Karthik\_K](https://meta.discourse.org/u/Karthik_K)
#### Post date: [2017 年 10 月 2 日午前 10:14 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/5 "2017-10-02T10:14:37Z")
That was exactly the issue. Disabled it and it works now. 🙂
---
### Author:  [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [2017 年 10 月 2 日午後 6:58 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/6 "2017-10-02T18:58:41Z")
See this: [Guest Gate (Sign Up Popup Plugin) - #21 by vinothkannans](https://meta.discourse.org/t/guest-gate-sign-up-popup-plugin/56625/21) Or, better, [Content Lockers - using pop-ups](https://meta.discourse.org/t/content-lockers-using-pop-ups/60291?source_topic_id=56625)
---
### Author:  [@jomaxro](https://meta.discourse.org/u/jomaxro)
#### Post date: [2017 年 10 月 2 日午後 10:00 UTC](https://meta.discourse.org/t/blank-page-after-upgrade-due-to-broken-plugin/71154/7 "2017-10-02T22:00:02Z")
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