Can't read custom license field

Hello everyone!I starting to use Turboactivate on Delphi 7. Until a certain moment it was working good, but now I can't read a custom license field. I have a field - "expiration_date" , and I'm getting an error:"Failed to get a feature value. The feature doesn't exist."

An error occurs at this moment:"Exp_date := ta.GetFeatureValue(PWideChar(WideString('expiration_date')));"

I've created new field - license_expire and update Delphi code, but result is the same. What is the problem?

Well, the name "license_expire" is different than "expiration_date", so change the code to read the "license_expire" field (matching whatever you named it on LimeLM).