When i activate hummmnigbird, my website doesnt't show backgorund image, and videos in the background, and it' starts opening very slow (gtmetrix analyze came back - analyze error, request timeout error). This has been doing for the past week, before was doing fine. And when i deactivated hummingbird, background comes back normal. Where can be the problem? I would like to keep tihis plugin, because it optimize other features (gzip, javasccript,..) but if this continues i wont be able to use it again.
Thank you for your support.