Bootstrap doesn't allow more than one instance per element

Hi! I’m on a mission to clear all console errors.
All fixed except one that I can’t figure out:

Bootstrap doesn't allow more than one instance per element. Bound instance: bs.tooltip.

It should be a problem in the layout page as it shows up in every content page, but I’m not using a tooltip in the layout page so don’t understand what makes that error show up.

Anyone any idea?