Zend Guard (Encoder)
Zend Loader (PHP Runtime)
When loading an encoded PHP file or application using Zend Loader extension, you might get the following error instead of normal output:
Or without a file path:
The errors above may vary in text with different path to files and different major ID numbers.
See the following KB to match between PHP version and Zend Guard encoder ID.
Once you identify the encoded PHP version from the article above, according to the Encoder ID, you can switch to, or change your PHP runtime version to match that PHP version.
If you must use a given PHP runtime version, you will then need a re-encoded version of the original PHP script or application matching your runtime PHP version. If you are not the software vendor, then ask for such a project release from the software maintainer / owner.