I cannot delete large file from repository

Hi bitbucket team,
unfortunately we committed a large file into our repository. And we're trying to remove this file from repository but we're getting this error when we sending delete commit here in web administration: "We had trouble committing your changes."

Repository: https://bitbucket.org/esdhorak/shh/\\
File: shh / shh-20151117.tar

Thanks,
ES team