I received a 209 killed error when running sequencer-test.sh in the src folder. What's the meaning of this error <img width="564" alt="Screen Shot 2022-05-12 at 15 01 20" src="https://user-images.githubusercontent.com/35663865/168149302-4ce7526a-1459-4658-9af2-0ba562c488c8.png"> ?