AmateR62

В файле oi-ya-maps.php в строке

return '<script type="text/javascript" src="http://api-maps.yandex.ru/2.0/?load=package.full&lang=ru-RU"></script>'.
				'<style>.YMaps {position: relative;} .YMaps .author_link {position: absolute;bottom: 9px; right:330px; z-index: 999;padding:0;display: table!important;line-height:12px;text-decoration:underline!important;white-space: nowrap!important;font-family: Verdana,serif!important;font-size: 10px!important;padding-left: 2px!important;color: #000!important;background-color: rgba(255, 255, 255, 0.7)!important;border:none;}</style>'.
			"\n".$output; // ...and show the map

исправил на

return '<script type="text/javascript" src="' . ( is_ssl() ? 'https://' : 'http://' ) . 'api-maps.yandex.ru/2.0/?load=package.full&lang=ru-RU"></script>'.
				'<style>.YMaps {position: relative;} .YMaps .author_link {position: absolute;bottom: 9px; right:330px; z-index: 999;padding:0;display: table!important;line-height:12px;text-decoration:underline!important;white-space: nowrap!important;font-family: Verdana,serif!important;font-size: 10px!important;padding-left: 2px!important;color: #000!important;background-color: rgba(255, 255, 255, 0.7)!important;border:none;}</style>'.
			"\n".$output; // ...and show the map