Neil, Thank you for pointing this out. If the former member is deceased then the link should go to his/her profile. If the former member is (or might be) still living then the new privacy rules require his/her profile to be unlisted. In that case, you should be taken to a page that indicates this.
In no event should you be taken to the error page that results - I checked it and get the same error.
If you can edit your question and in the space for tags, add: sysops then it will bring the question to their attention. Those are the folks who will be able to find and fix the problem.