Strange message during hg push

I pushed some changes to bitbucket and got an error message:

{{{
remote: pushing to ssh://hg@bitbucket.org/leogluzman/nadovmeste/
remote: searching for changes
remote: remote: adding changesets
remote: remote: adding manifests
remote: remote: adding file changes
remote: remote: added 2 changesets with 2 changes to 2 files
remote: remote: bb/acl: kmike is allowed. accepted payload.
remote: remote: quota: 5.6 MB in use, 1.0 GB available (0.55% used)
remote: remote: error: changegroup.csetlog hook raised an exception: 'NoneType' object has no attribute '_repo'
}}}

Though it seems that changes are pushed.