Are you literally trying to run the *.MER Runtime on your PC so that it executes the HMI program just like it would on a PanelView Plus terminal ?
Or are you trying to open the project in the FactoryTalk View editor so you can view and edit its constituent screens, tags, objects, and features ?
The error message you posted suggests that you are trying to run the *.MER Runtime, but that you have borrowed an activation for FactoryTalk View Studio ME, rather than for FactoryTalk View ME Runtime, because the FactoryTalk View Studio license enables a 2-hour operation of the Runtime file for testing or for emergencies.