If you must use a clone, buy it from a reputable AliExpress seller, but assume risks. Always use a reputable USB dongle to avoid bricking cars. To help you further, tell me: What car/ECU are you trying to program? Are you using an original USB dongle or a clone ?
A common query among beginners and experienced tuners alike is: "Can I get a PCMflash 120 download link?" pcmflash 120 download link
Run the official installer from the link above. If you must use a clone, buy it
Users purchase only the specific licenses (modules) they need for particular vehicle models or ECU types. If you must use a clone