Access to the administrative panel was gone. After input -/administrator - the white screen. What's the problem? I already am afraid to use your template further. And what will be when I fill shop with goods and everything here so will fly? I very am not happy. It takes away a lot of time.

Such mistake -
Notice: Undefined variable: doc in /home/users1/e/evch/domains/delo-texniki.ru/templates/sj_megashop/menusys/class/mega/tmpl/default.php on line 15

Notice: Trying to get property of non-object in /home/users1/e/evch/domains/delo-texniki.ru/templates/sj_megashop/menusys/class/mega/tmpl/default.php on line 15

•
Notice: Undefined variable: menu_arrow in /home/users1/e/evch/domains/delo-texniki.ru/templates/sj_megashop/menusys/ytmenu.php on line 309

How to correct?

on line 15 - $addCssRight = $doc->direction =='rtl' ? "rtl" : "";

on line 309 - $menu_image_child = $menu_arrow ;

Through a hosting I disconnected a plugin YT Shortcodes the entrance to the administrative panel appeared, it is good.