InDesign CC 2017 crashes when trying to add a hyperlink

InDesign CC 2017 is crashing whenever I try to add an additional hyperlink to my document.  I've already added four to the document recently without any problems, but for some odd reason....it won't let me add anymore.  I've created a short video to demonstrate the problem:

InDesign CC 2017 was installed on my machine 71 days ago.  Here are the specs for my computer:

Running OS X El Capitan

Version: 10.11.6

iMac (27-inch, Late 2012)

Processor:  3.4 GHz Intel Core i7

Memory:  32 GB 1333 MHz DDR3

Startup Disk:     Macintosh HD

Graphics:     NVIDIA GeForce GTX 680MX 2048 MB

--Charles