Hi Larry,
Error 8011 indicates that the license does not contain a valid feature for the requested system / user
License features are bound to a system. In case of node-locked licenses the features are locked to one or more systems directly.
If a request done by a Uniface application is from a system that has not its locking code in that license file, it will be denied. User will then get this 8011 error message.
Also, when features are missing for that application or when the Uniface version is higher than allowed by the license feature, you will receive the 8011 error.
To get a little more insight in what could be the cause see knowledge article: How and What to request on Uniface Licenses