Robert,
Sorry that you are seeing issues with license.
Are you working with Eclipse 2020-09 and higher? If yes, then please apply the patch as suggested in this FAQ to fix the license dialog issue :
https://www.genuitec.com/forums/topic/codemix-and-angular-ide-compatibility-issues-in-eclipse-2020-09/
Once the patch is applied, you can enter your key based license and activate. Please see ‘Activating a commercial license’ section for detailed steps : https://www.genuitec.com/docs/setup/licensing-codemix/
If you are still seeing issues, then please share the screenshot of the license activation failure along with .log file located at workspace dir/.metadata/.log (rename the extension to .txt and attach it here), Eclipse version details for further investigation.
Apologies for inconvenience caused.
–Swapna
Genuitec Support