Solved
Similar problem:
- "Creo 4.0 mistake 0x06000012": https://community.ptc.com/t5/System-Administration/Creo-4-0-mistake-0x06000012/m-p/484701
- "Licensing Error Creo 7.0.2.0": https://community.ptc.com/t5/PTC-Education-Forum/Licensing-Error-Creo-7-0-2-0/td-p/708655

