Please obtain the appropriate license to use advanced classification
The License code provided by UiPath for Abbyy FlexiCapture Standalone can be used to set up project and creation of document definitions only. These licenses are part of a setup/development environment and cannot be can’t be used for production/runtime. Classification functionality being a runtime feature will not available in this license.
This can also be validated by navigating to License Manager, where Advance Classification will be set to NO.
Below screenshot for reference
To use Classification functionality, Abbyy FlexiCapture Distributed version can be procured from Abbyy directly