Is this to depth for a super table field?

Question

I have a section with products. Then a section where you can create sets with the products. Means a super table field with the field quantity and a entries field.

Example:

Database Products:

Element 1,
Element 2,
Element 3

Database Sets:

Set 1 - Element 1 2x, Element 3 1x
Set 2 - Element 2 4x, Element 1 2x

really simplified but I hope it is understandable.

On the output I want a table for each element where is listed in which sets this element is included.

Example 2:

Element Page Output:

Element 1: Included in Set 1
Element 2: Included in Set 2
Element 3: Included in Set 1 and Set 2

This has worked so far with following code:

{% set elementlist = craft.superTable.getRelatedElements({
    relatedTo: {
        targetElement: entry,
        field: 'productList.element',
    },
    criteria: {
        section: 'sets',
    }
}).all()|supersort('natcasesort', SORT_NUMERIC) %}

and then:

{% for entry in elementlist %}
    <li>{{entry.title}</li>
{% endfor %}

Ok now the thing…

we have now decided to create the Sets on another section than the section which i want to put it out.

Means there is a third Section where I refer to my sets with an entries field – this should be putted out.

But when I change my variable to:

{% set elementlist = craft.superTable.getRelatedElements({
        relatedTo: {
            targetElement: entry,
            field: ' entry.setShortcut.one().productList.element',
        },
        criteria: {
            section: 'sets',
        }
    }).all()|supersort('natcasesort', SORT_NUMERIC) %}

I just get a error: Undefined offset: 0;

What can I do? Is it just to deep for a super table field or Craft CMS?

Shortly:

Before (is working): From Front End Page -> Set Page -> Super Table Field -> Check if this element is referred in min 1 row.
Now (is not working): From Front End Page -> Set Page -> Set Creator (refereed in the Entries Field of each Set Page) -> Super Table Field -> Check if this element is referred in 1 row.