Hi @pertsh.galstyan.
Error boundary events are really more about “business errors”. By that I mean situations, that are not wanted but can occur in your business process.
You shouldn’t model technical exceptions in your process definition.
Also see here:
Those exceptions will lead to incidents in your workflow (you can also configure a possible retry count).
If you want some centralized handling of these incidents, you could write your own incident handler, that could perform needed task when an incident occurs.