Getting this error message in Studio 2015, using Windows 10, Office 8: "An unexpected error has occurred while loading the global plug-in services." I have tried the solutions suggested for Studio 11. No result. Studio was working fine yesterday

Getting this error message in Studio 2015, using Windows 10, Office 8: "An unexpected error has occurred while loading the global plug-in services."  I have tried the solutions suggested for Studio 11. No result. Studio was working fine yesterday!