Wordify

If your website started showing a blank white page, or the message "There has been a critical error on this website", right after WordPress updated to version 7.1, the most likely cause is a known bug in the WP Rocket caching plugin. It affected sites across the web, and it is not a problem with your content or your hosting. WP Rocket fixed the bug in version 3.23.2.2, released on August 20, 2026. Any older version, including 3.23.2.1, can crash a site running WordPress 7.1.

Your site went down right after updating to WordPress 7.1. The update may have happened automatically.

The WordPress admin (wp-admin) is down too, so you cannot log in there to fix it.

Turning on WP_DEBUG appears to do nothing. The site fails before anything can display.

Your PHP error log shows this error on every request:

- Your site went down right after updating to WordPress 7.1. The update may have happened automatically.
- The WordPress admin (wp-admin) is down too, so you cannot log in there to fix it.
- Turning on WP_DEBUG appears to do nothing. The site fails before anything can display.
- Your PHP error log shows this error on every request:

<code>PHP Fatal error: Uncaught TypeError: substr(): Argument #1 ($string) must be of type string, int given in .../wp-content/plugins/wp-rocket/inc/ThirdParty/Plugins/CDN/Cloudflare.php:562</code>

You can view this log in the Console under WordPress → Debug, or ask us in the chat and we'll check for you. The bug triggers even if you don't use Cloudflare.

Your wp-admin is down, but the Wordify Console can still manage your plugins.

Log in to the Wordify Console at console.wordify.com.

Open your site and go to WordPress → Plugins.

Find WP Rocket and switch its Status toggle to inactive.

Reload your website. It comes back immediately.

1. Log in to the Wordify Console at console.wordify.com.
2. Open your site and go to WordPress → Plugins.
3. Find WP Rocket and switch its Status toggle to inactive.
4. Reload your website. It comes back immediately.

Your site stays fast with WP Rocket off: Wordify's server-side caching is separate from WP Rocket and keeps running.

It is safe to use WP Rocket again once it is updated to version 3.23.2.2 or later:

In the Console, go to WordPress → Plugins.

Update WP Rocket to the latest version.

Switch its Status toggle back to active.

Reload your website to confirm everything looks right.

1. In the Console, go to WordPress → Plugins.
2. Update WP Rocket to the latest version.
3. Switch its Status toggle back to active.
4. Reload your website to confirm everything looks right.

If no update is showing for WP Rocket, don't reactivate the old version. Ask us in the chat and we'll update it for you safely.

Then something else is going on. Start a chat with us and we'll dig into your logs right away.

A known WP Rocket bug takes sites offline on WordPress 7.1. How to spot it and get back online in about a minute.

Site down after updating to WordPress 7.1? Check WP Rocket

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Create your workspace and invite the people you work with.

Set up your account

Build your first workflow and watch it run end to end.

Ship something

Connect the tools your team already uses to bring data in.

Connect your stack

A quick lap of the product so you know where everything lives.

{appName} in 60 seconds

This prototype demo is aware that you are reading “{title}”. It can point you back to the current article, but a production article-aware Fin contract is still follow-up work.

Prototype article-aware answer

Because you already asked about invitations, this prototype demo can add the follow-up: use the role selector before sending each invite to limit access to the teammate responsibilities.

Prototype role-limiting follow-up

This prototype demo suggests starting with your workspace profile, inviting the team members who need access, and then connecting the integrations you use.

Prototype getting-started answer

In this prototype demo, integrations are configured from workspace settings. Choose the integration, connect the account, and review the enabled permissions.

Prototype integrations answer

In this prototype demo, invite teammates from workspace settings, then choose the access each teammate needs before sending the invitation.

Prototype invite-team answer

This prototype demo does not have a scripted answer for that question yet. Try asking how to invite your team or open a source article. No production Fin API was called.

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Site down after updating to WordPress 7.1? Check WP Rocket

How to tell if this is your issue

How to get back online in about a minute

Turning WP Rocket back on

Still down after deactivating WP Rocket?