It occurred to me that I can provide more background. The email links to the tickets bring me to the main Lansweeper login page rather than directly to the ticket which it used to do.
However, I also have a personal webpage on our company server. I had links that brought me to direct pages for Reports, a current list of computers, Helpdesk, Switches, Deployment, and the knowledgebase.
After we moved our Lansweeper installation to a newer server, the links all go to the login home page. I suspect it is an easy fix, which I am hunting for every now and then. Or the last update to Lansweeper implements homepage login as a security step.