Hi. I purchased the plugin, unzipped folder and tried to install. It causes an internal server error each time I try: "500 Internal Server Error". Is there a special system plugin required to make this plugin work? Can you please advise?

Dear jeanl

Please check right version before install refer the change log here to install for joomla version prntscr.com/n2kq78
or send us the domain and admin account to check directly

thanks

Thank you, I got it installed and plugin enabled. I do not see a plugin button in my editor? Using JCE.

Dear jeanl

Please go to the file: plugins\system\ytshortcodes\ytshortcodes.php and find:
$page = str_replace('<div id="editor-xtd-buttons">', '<div id="editor-xtd-buttons">' . $button, $page);
$page = str_replace('<div id="editor-xtd-buttons" class="btn-toolbar pull-left">', '<div id="editor-xtd-buttons" class="btn-toolbar pull-left">' . $button, $page);

=> Edit to:

$version = new JVersion();
if($version->RELEASE < '3.5' ){
$page = str_replace('<div id="editor-xtd-buttons">', '<div id="editor-xtd-buttons">' . $button, $page);
$page = str_replace('<div id="editor-xtd-buttons" class="btn-toolbar pull-left">', '<div id="editor-xtd-buttons" class="btn-toolbar pull-left">' . $button, $page);
}else
{
$app = JFactory::getApplication();
$editor = $app->getCfg('editor');
if($editor == "jce")
{
$page = str_replace('<div id="editor-xtd-buttons" class="btn-toolbar pull-left" role="toolbar" aria-label="Toolbar">','<div id="editor-xtd-buttons" class="btn-toolbar pull-left" role="toolbar" aria-label="Toolbar">'. $button.'</div><div class="toggle-editor btn-toolbar pull-right clearfix">', $page);
}
if($editor == "tinymce")
{
$page = str_replace('<div class="toggle-editor btn-toolbar pull-right clearfix">','<div class="toggle-editor btn-toolbar pull-right clearfix">'. $button.'</div><div class="toggle-editor btn-toolbar pull-right clearfix">', $page);
}else{
$page = str_replace('<div id="editor-xtd-buttons" class="btn-toolbar pull-left">', '<div id="editor-xtd-buttons" class="btn-toolbar pull-left">' . $button, $page);
}
}

thanks