When you purchase a license for the current version (5.3x), you will automatically be entitled to use that license with version 5.23 as well. There is, however, no longer a technical support for that version available.

Best regards

I am not sure which version you are using, but probably something relatively old, because the current version (and several past versions) do not contain this error message as such; instead, it says, at the end, the following hint: "The inner exception contains details about the problem.". The explanation of the error code can then, according to this hint, be found inside the inner exception.

Anyway, the corresponding error text for this error code is:

Not allowed to run by the license.
You might be using a trial license, and the version of the software you are using is obsolete. Obtain a recent version to resolve this problem.

If you are a licensed user, then probably the license key is not properly installed, and the component used to run in a trial mode. Let me know if this is the case, and we will help you to find the reason.

If you are not licensed, then you can no longer use this trial version.

Best regards