# FAQ & Tricks
# Q: Verification key is out of date
I constantly get the message,
The verification key is out of date
This means that your browser cached a previous version of this page with an old key (for security reasons the verification key is generated every request)
Why? Maybe you pressed the back button in your browser or opened a bookmark from last session.
How do I go about this?
# A: Verification key is out of date
The above error means that the xCRUD session has expired and so the above message is thrown. You can do the following to avoid this error:
Go to xcrud_config.php and locate the line
public static $autoclean_timeout = 30000000;
Ensure that it has a high value like above
Also find the line below and set
public static $autoclean_activate = false;