Hi @nguyenalm,
https://www.dropbox.com/s/aw9tnrcqdb529rw/ssh-mattermost-3.log?dl=0
That error appears to be because your copy of node.js is out of date. I'd recommend that you update it to the latest version.
file_info_test.go:24: Got incorrect mime type: text/plain
Thanks for finding that. If you update to the latest master, that test should be fixed.