When opening Monsoon Marketplace
This error indicates that there may be another Windows user on that computer with Monsoon Marketplace open. For example, if you logged into the computer as one user and opened Monsoon Marketplace, then logged in to the computer as a different user, you would not be able to open Monsoon Marketplace because it is already open for the first user. This error is often seen on computers where Remote Desktop, Windows Terminal Server, or another remote desktop application are used.
To proceed, you can close Monsoon Marketplace in the other user’s account, log off the other user, or simply reboot the machine.