MabiPro: The Authentic Old-School Mabinogi Experience

After the maintenance (an assumption, weird things happen to me all the time) I cannot successfully launch the game. My launcher is displaying the following message: "Failed to update: Mabinogi is currently running." There is no instance of Mabinogi running in the background according to Task Manager. Additionally, I've installed/re-installed using different versions of the full client installer (sometimes trying to see if the primary launcher helped; to no avail). Using the primary launcher displays the following message: "Error retrieving local version, is the game installed?" Help?

Nothing in the process list contained "Client" other than "Client Server Runtime Processes" under the Windows Processes sub-section, which cannot be closed. Moving all files within a folder did not successfully launch the game either. I think that was what you meant by the launcher not being accompanied by the game files? Any other suggestions?