The plugin was made for Windows XP. It may not run well on Windows 10 or Windows 11. You might need to run your DAW in compatibility mode. Edirol Hyper Canvas VST Plugin Free Download The Legality Status
If you want to get these classic sounds up and running, tell me:
Right-click the setup.exe and select "Run as Administrator."
If you cannot pay for the Roland Cloud version, here are three completely legal, free VST plugins that cover the same "General MIDI 2 / Sound Canvas" territory.
A free VST focusing on orchestral sounds that covers many GM territories.
Roland actually offers a free demo of their other Sound Canvas plugin. It has white noise bursts every 30 seconds, but it is perfect for testing the workflow.