The "Could not validate data" error appears during Workspace creation when PhantomBuster's anti-automation check is blocked, typically by a privacy browser or a browser extension (ad blocker, privacy tool, script blocker). To fix it: open a private/incognito window in Chrome with all extensions disabled, log in to PhantomBuster, and try creating the Workspace again.
Why you're seeing this
This error means PhantomBuster couldn't validate your request when you tried to create a Workspace.
This validation step helps protect PhantomBuster from automated signups.
The error usually happens when a privacy browser or browser extensions block the validation check.
How to fix it
- Open a private / incognito window (Chrome recommended).
- Make sure no browser extensions are enabled.
- Log in to PhantomBuster.
- Try creating the Workspace again.
Frequently asked questions
What does the "Could not validate data" error mean?
PhantomBuster couldn't validate your request when you tried to create a Workspace. This validation step helps protect PhantomBuster from automated signups.
Why is this happening in my regular browser?
Privacy browsers (like Brave or DuckDuckGo) and browser extensions (ad blockers, privacy tools, script blockers) often block the validation check that runs during Workspace creation.
Which browser should I use?
Chrome in a private/incognito window with extensions disabled is the most reliable combination. Firefox and Safari also work if extensions are off.
Do I need to disable extensions permanently?
No. Once your Workspace is created, you can return to your regular browser setup with extensions enabled.
Why does PhantomBuster need this validation?
It prevents automated signups that would abuse the platform. It's a one-time check at Workspace creation, not something that runs during normal Phantom use.
If the error keeps showing up
If you've tried the steps above and still see the error, get in touch with our Customer Care Team.