title: ERROR TypeError: Cannot read property 'isEventFrom' of undefined at NgbDropdown._isEventFromToggle
body: <p>I've build ng-bootstrap modal, which works with problems, but it works at least. but whenever I open the website (doesn't matter which page) on each click the error comes in: <a href="https://i.stack.imgur.com/cbVZI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cbVZI.png" alt="enter image description here"></a></p>
  
  <p>I tried to comment all the added ng-bootstrap modal code all over the project, but the error still remains. I don't even know where the problem comes from. Any ideas?</p>