Can't get item by its identifier

[joarobles]

I can´t get an item by its ID, I'm trying to remove it from the cart but I obtain:

Call to a member function toArray() on a non-object

I can reproduce the issue like this:

foreach (Cart::contents() as $item) {
    \Log::info ('ID: '. $item->id); // Outputs "42" (integer)
    \Log::info ('Item', Cart::item ($item->id)->toArray ()); // error
}

Also I can't remove the item using

Cart::item((string) $id)->remove()