#2 Mar 13, 2017 23:31
Regarding the skin. It's outdated, but as long as I see, fully functional. Please confirm you followed these steps:
1.- Go to: Collections > [Your collection] > Skin
2.- Click on the "Choose a different skin"
3.- Click on the "Install new" button
4.- Set Skin type to "All skins" and Collection kind to "All"
You may now see the skin "Underground" and be able to click on "Install NOW".
Regarding the plugin. You can use the built-in Video plugin (http://b2evolution.net/man/adding-videos), but if you want to use any other plugin, make sure that it's not still displayed in the Installed plugins list (http://b2evolution.net/man/installed-plugins), and then verify that it is available for installation (http://b2evolution.net/man/plugins-available-for-installation). BTW, is this the plugin you are trying to install: http://plugins.b2evolution.net/youtube-plugin?