Unfortunately,it's been about 7 years since I've used a Masterwood. There should be a help button on the screen that explains the error codes, and will tell you what the 2.1 is. I'm guessing the 1009 is an input, maybe input 9?
Is this machine from around 1995? Does it have a DOS control?
You need to find someone very familiar with those machines, or someone that's really,really good? Do you have a manual or schematics? If not, it'll be even more difficult.
While these were very good machines in their day, I would not recommend buying one, unless the intent was to do a complete control retrofit.