call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback...

There is a typo on line 147, which gives following error message when you enable block:

call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'theme_nice_menu_build' was given w pliku /var/www/drupal/includes/theme.inc, linia 656.

There is:

return '<ul class="nice-menu nice-menu-'. $direction .'" id="nice-menu-tax-'. $delta .'">'. theme('nice_menu_build', $menu) ."</ul>\n";

Should be:

return '<ul class="nice-menu nice-menu-'. $direction .'" id="nice-menu-tax-'. $delta .'">'. theme('nice_menus_build', $menu) ."</ul>\n";