My dishwasher smelled like burning?

We have a "portable" dishwasher that we hook up to our sink. The other night it was in the rinse/dry cycle and we smelled a very faint burning smell. "It smelled like yarn when it burns... I know, oddly specific, right?)

Anyway, I unplugged it and went back to bed. Now when we plug it back in, it doesn't work... Was it the motor that burned out? Is there some other problem possibly?

Any thoughts would help.

Thanks!