Element is no longer attached to the Dom error for link - selenium

Question

I try to get a href from an anchor according to linkText given with func param (for example here Westwood or Linda).
In the code below I changed classes values (cause of company info), but beside thats the code. For each <tr> the hrefs are identical for both <td>, but different from <tr> to <tr>
I get the 1st href with:
driver.findElemnt(By.xpath("//a[#class = 'class Name of a']").getAttribute("href")
or the same with:
xpath="//a[#class = 'class Name of a'][1]";
but when I go:
"//a[#class = 'class Name of a'][2]" or 3 or 4...
or when I use:
By.partialLinkText
It fails, so I never get beyond the 1st <td> of the first <tr>.
The Error: oopenqa.selenium.StaleElementReferenceException : Element
is no longer attached to the Dom.
The Elements are visible all the time, so its not a visibility problem.
This is the html:
<tr class="Class name for tr here">
<td headers="description _ CustomerList:lastName">
Westwood
</td>
<td headers="description _CustomerList:firstName">
Linda
</td>
</tr>

Answer 1

You're trying to retrieve the second anchor tag within the same parent (in the example document: table cells).
Instead of
//a[#class = 'class Name of a'][2]
query the second anchor tag in the whole document:
(//a[#class = 'class Name of a'])[2]
Some more examples how to use positional predicates (I omitted the class predicate here):
Anchor tags from all second table cells per row:
//td[2]/a
Second anchor tag per row:
//tr//a[2]