Check two things:
Clean your strainer, located behind the kick panel at the lower front of the machine. It will be in between the drum and the pump, and will have a lid that unscrews.
Check your Drain Hose: The easiest way is to remove it from the house drain, and empty it into a bucket. If at all possible, point it outside and run a cycle with fresh water only.
The strainer will probably fix you up, and usually makes the clothes smell better too.
Best regards, --W/D-- please feel free to rate this solution..thanx!