Undefined index: col_span_total and problem with subcategories

[Dihanie]

I have two problems. Prestashop 1.6.1.16

1. Notice: Undefined index: col_span_total in /home/*/cache/smarty/compile/49/35/72/4935724fa01aa5a298cc2969c30bbc457f78c03c.file.shopping-cart.tpl.php on line 546

Notice: Trying to get property of non-object in /home/*cache/smarty/compile/49/35/72/4935724fa01aa5a298cc2969c30bbc457f78c03c.file.shopping-cart.tpl.php on line 546

2. Tell me what could be the problem.
I change the order of subcategories in the category. Writes updated successfully. I update the page order is the same.

When the subcategory was moved to another, and then returned to the old category.
That id in the steel category 1,2,3,4, 6. 6 returned and is not displayed now in the menu