Whoa! That’s really strange. Well, the laser beam manager was only recently added, so all you can do now is report it! I guess you can only refresh to get rid of it.
Welcome to the forum, @Eeveeborg! Check out the new-user-must-read and forum-tips for more easy help! Read the Community Guidelines for a gist of the rules. If you ever run into a hard problem, just ask away! After all, this is a community forum!
Remember to mark a solution it it works again!