<p>This will be a bug in a plugin you've got installed on that site that is trying to reference the <a href="https://craftcms.com/news/craft-3" rel="nofollow noreferrer">non-existent (as of a few hours ago) Craft Client edition</a>.</p>

<p>If you look in your <code>craft/storage/logs</code> folder for that error, then you'll be able to see which plugin is causing it in the stack trace leading up to the error.</p>

<p>You'll then need to contact the plugin developer and share the stack trace with them so they can get it fixed for their next release.</p>

CC BY-SA 3.0
2018-04-04T21:20:36.600Z
Thanks, found the stack trace. Freeform is causing the issue. Can I disable the plug-in somehow to make the admin and website available again?
Guido Neele
CC BY-SA 3.0
2018-04-04T21:28:41.417Z
Looks like they've released an update: https://github.com/solspace/craft3-freeform/issues/39  You could set the freeform line in your `composer.json` file to use `2.0.0-beta.14`, then run `composer update` to pull it in.
Brad Bell
CC BY-SA 3.0
2018-04-04T21:14:17.627Z
2018-04-04T21:14:17.627Z
Brad Bell
<p>Tried to update to new version. Website and admin went down, error message states "Undefined class constant 'Client'". How to solve this message?</p>

<craft3><auto-updates>
Undefined class constant 'Client'
# Undefined class constant 'Client'

(Asked by: username_0 on 2018-04-04)

Tried to update to new version. Website and admin went down, error message states "Undefined class constant 'Client'". How to solve this message?

**Tags:** craft3, auto-updates

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## 1 answers

### Answer by username_1 on 2018-04-04. Score: 1 | Accepted answer

This will be a bug in a plugin you've got installed on that site that is trying to reference the [non-existent (as of a few hours ago) Craft Client edition](https://craftcms.com/news/craft-3).

If you look in your `craft/storage/logs` folder for that error, then you'll be able to see which plugin is causing it in the stack trace leading up to the error.

You'll then need to contact the plugin developer and share the stack trace with them so they can get it fixed for their next release.

> **Comments:**
> **username_0**: Thanks, found the stack trace. Freeform is causing the issue. Can I disable the plug-in somehow to make the admin and website available again?  
> **username_1**: Looks like they've released an update: https://github.com/solspace/craft3-freeform/issues/39  You could set the freeform line in your `composer.json` file to use `2.0.0-beta.14`, then run `composer update` to pull it in.  

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