Same problem, except I am directed to a page with the following message:
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Warning: simplexml_load_file(https://gdata.youtube.com/feeds/api/videos/https://www.youtube.com/watch?v=1Ldrq6kO5go) [function.simplexml-load-file]: failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request in /home/mdeicke/public_html/thatwriterswebsite.com/wp-content/plugins/cool-video-gallery/lib/youtube.php on line 110
Warning: simplexml_load_file() [function.simplexml-load-file]: I/O warning : failed to load external entity “https://gdata.youtube.com/feeds/api/videos/https://www.youtube.com/watch?v=1Ldrq6kO5go” in /home/mdeicke/public_html/thatwriterswebsite.com/wp-content/plugins/cool-video-gallery/lib/youtube.php on line 110
Fatal error: Call to a member function children() on a non-object in /home/mdeicke/public_html/thatwriterswebsite.com/wp-content/plugins/cool-video-gallery/lib/youtube.php on line 39
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The URL is https://thatwriterswebsite.com/wp-admin/admin.php?page=cvg-gallery-add#linkvideo
The plugin looks great, and it’s the first of dozens that does exactly what I want. I really hope you continue with it.