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It's been quite some time since Google launched Android 4.4 KitKat, alongside its Nexus 5. Google has even released two point revisions to the OS. And despite lacking official support, the Sony Xperia Tipo and Google Nexus Onehave already gotten unofficial ports of this OS. The number of older devices running KitKat gets bigger and bigger every day.
So you were trying to flash a ROM or kernel to your Samsung Galaxy Ace S5830i through ODIN. What was that? Did you say that you (or your cat) accidentally unplugging the device in the middle of the process? While this won't always result in a bricked device, you can likely get stuck in a state where the device is detected by Odin, but nothing can be flashed. For cases like this, XDA Member brijeshep might have the solution.