No push notifications after upgrade 7.14

2015-09-10_16:44:25.33307 2015-09-10T16:44:25.331Z 7330 TID-fg8n8 EmailsOnPushWorker JID-35f6276189dd8010e51fb52a INFO: start
2015-09-10_16:44:25.44913 2015-09-10T16:44:25.449Z 7330 TID-fg8n8 EmailsOnPushWorker JID-35f6276189dd8010e51fb52a INFO: fail: 0.117 sec
2015-09-10_16:44:25.44985 2015-09-10T16:44:25.449Z 7330 TID-fg8n8 WARN: {"retry"=>true, "queue"=>"default", "class"=>"EmailsOnPushWorker", "args"=>[22, "pepe@botika.com", {"object_kind"=>"push", "before"=>"ceb382b340a2cdb77034bb5a559b6a271163c34e", "after"=>"3db969e9d3a3bde7367c28ae963412b7796ebadd", "ref"=>"refs/heads/master", "checkout_sha"=>"3db969e9d3a3bde7367c28ae963412b7796ebadd", "message"=>nil, "user_id"=>16, "user_name"=>"Pepe Botika", "user_email"=>"pepe@botika.es", "project_id"=>22, "repository"=>{"name"=>"hack-you", "url"=>"git@pupita.labs.dot.net:master-of-puppet/hack-you.git", "description"=>"", "homepage"=>"https://pupita.labs.dot.net/master-of-puppet/hack-you", "git_http_url"=>"https://pupita.labs.dot.net/master-of-puppet/hack-you.git", "git_ssh_url"=>"git@pupita.labs.dot.net:master-of-puppet/hack-you.git", "visibility_level"=>0}, "commits"=>[{"id"=>"3db969e9d3a3bde7367c28ae963412b7796ebadd", "message"=>"new test file\n", "timestamp"=>"2015-09-10T16:51:06+01:00", "url"=>"https://pupita.labs.dot.net/master-of-puppet/hack-you/commit/3db969e9d3a3bde7367c28ae963412b7796ebadd", "author"=>{"name"=>"Pepe Botika", "email"=>"pepe@botika.es"}}, {"id"=>"e9c8a80a9dcbb96dea4f2ddfae57cadeaea97a22", "message"=>"new test\n", "timestamp"=>"2015-09-10T16:09:27+01:00", "url"=>"https://pupita.labs.dot.net/master-of-puppet/hack-you/commit/e9c8a80a9dcbb96dea4f2ddfae57cadeaea97a22", "author"=>{"name"=>"Pepe Botika", "email"=>"pepe@botika.es"}}, {"id"=>"ceb382b340a2cdb77034bb5a559b6a271163c34e", "message"=>"tes2t\n", "timestamp"=>"2015-09-10T16:05:46+01:00", "url"=>"https://pupita.labs.dot.net/master-of-puppet/hack-you/commit/ceb382b340a2cdb77034bb5a559b6a271163c34e", "author"=>{"name"=>"Pepe Botika", "email"=>"pepe@botika.es"}}], "total_commits_count"=>3}, {"send_from_committer_email"=>false, "disable_diffs"=>false}], "jid"=>"35f6276189dd8010e51fb52a", "enqueued_at"=>1441901880.8282297, "error_message"=>**"wrong number of arguments (1 for 2)**", "error_class"=>"ArgumentError", "failed_at"=>1441901880.942969, "retry_count"=>6, "retried_at"=>1441903465.448623}
2015-09-10_16:44:25.44996 2015-09-10T16:44:25.449Z 7330 TID-fg8n8 **WARN: wrong number of arguments (1 for 2)**
2015-09-10_16:44:25.45002 2015-09-10T16:44:25.449Z 7330 TID-fg8n8 WARN: /opt/gitlab/embedded/service/gitlab-rails/app/models/commit.rb:27:in `decorate'

I dont really understand which pararmeters I am passing.

any help?

Thanks!