Vimeography Pro: Download failed.

Seeing following error when trying to update the Pro version of the plugin:

Updating Plugin Vimeography Pro (1/1)

Downloading update from https://vimeography.com/edd-sl/package_download/MTU4OTY5NTg4NjpGNjM3NDFFRjFERDBDQ0IwOjM2OmI5YTIxNDZhOTAwMGM5MWY5NzlhYzk5YWZkMGIzNDIwOmh0dHBzQC8vd3d3Lm4xZmQub3JnOjA=…

An error occurred while updating Vimeography Pro: Download failed. Internal Server Error