Error 500 is usually found when a customer has created a Linktree or Profile but missed out on assigning an action to an action link, so although the preview looks correct when the link is loaded, it errors out and produces the error 500.
Below is a quick guide on the error, the standard issue, and how to remedy it.
Here is what the Error 500 looks like and will load on the screen.
From here, we look at the action, and we will be able to identify why the error is occurring.
From the image above, you can see that there is a missing link, and the action shows the "Select Action" on the dropdown showing that no action has been selected.
Depending on the scenario you are in, you could ask them a few different ways to see where they have gone wrong, and this ultimately relies on how you are communicating with the customer.
Zoom Call
On a zoom call, you can ask the customer to share their screen with you. This will allow you to both remedies the issue and educate the customer at the same time, which is the perfect combination.
The fix for this would be for the customer to assign the action to the link, which currently does not have an action attached. Further to this, as you can see from the example above, you may notice that the customer has a link that does not have a link attached.
Ticket
When trying to fix this on a ticket, the best way to help a customer is to send them the knowledge base article to see if that solves the problem; if they continue to have the same issue, you can request that they give you shared access by sending a link.
Once you have fixed the issue for the customer, you need to educate them on why is occurred. For example, explain with screenshots how the field was empty and that had caused the error.