Are you are seeing a message about Qt5Widgets.dll is missing on your Windows PC? If so, try and remove and reinstall Malwarebytes Premium Trial if you or your IT Department was installing that software recently especially if you received a prompt by Malwarebytes itself to restart the computer.
So why did you get the prompt? Well, it most likely got hanged at some point during the install. Fortunately, Malwarebytes prompts to reinstall and since the issue is new, I knew the root cause and fixed it with a reinstallation. If you are in the IT Department, you may want to skip Malwarebytes Premium Trial since it has a reminder notification to upgrade after 14 days passes and will cause the end user to call your department unnecessarily for popups so substitute with the Barracuda Malware Removal Tool instead.