Thanks for getting in touch; we’ll be happy to assist. Can you verify which version of TubePress you have installed at WP Admin > Plugins? It looks like you may be using an older version of TubePress that does not support the latest version of the Vimeo API (v3), in which case updating 1 to the latest version of TubePress and completing the one-time Vimeo API setup 2 should resolve this issue. Please note that you may also need to clear your system cache (as described at the end of this article 3). Give that a try and please let us know if there is anything else we can do to assist!