Widgets problem at appearance

Widgets are not loading right, I cannot drag items and I also cannot see upper bar. Some files might be broken or missing.

http://shrani.si/f/k/Rz/IdjKzWr/widgets2.png

Do you have any ideas which files could be missing (theme files or wordpress files). I also already downloaded WordPress again and changed all files and it’s not taking any effect.

Themes tab and everything else is loading OK.

http://shrani.si/f/1I/12b/3qxmWyfI/widgets1.png

Please help me.

Regards, mm