Code Canyon: Envato Elements Video Contest Wordpress Plugin (Vimeo Link Embed Error)

2 Vimeo links submitted show errors on the video preview thumbnail on admin side, but 1 Vimeo link with same linked setup (Private, Password Protected), has no error. Seems to be a glitch, as links have been replaced and updated but still an error message. Links have been separately browser tested and there is no problem with the link. Screenshots 1 and 3 show vimeo link glitch and screenshot 2 shows successfully linked vimeo (private/password) video in the admin gallery view for the video contest plugin.

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