Has anyone else had a problem with the new IOBit Malware Fighter 1.0?

I"ve been using IOBit's Security 360 Pro successfully for a couple of years. The other day, when prompted to "update" it to their Malware Fighter, I downloaded the latter and installed it. On its first run, it stalled at the "Initializing" stage, and my computer stopped functioning. After re-trying to run it unsuccessfully, I tried to contact the company through their Feedback form, but got an error message when I clicked on the "Submit" button. So, I uninstalled MF and reinstalled 360 from my stored downloads; it works.