Would like to share my experiences with Dreamweaver crashes. Not sure if this is the same problema as many are facing, but it all started (to crash) when I started using Boostrap. As I use PHP, I was able to remove the crashes by calling the boostrap.min.css indirectly, using this:
<?php echo '<link href="css/bootstrap.min.css" rel="stylesheet">'; ?>
instead of <link href="css/bootstrap.min.css" rel="stylesheet">
Once implemented the PHP code, dreamweaver is not longer crashing. It does not solve the root cause, but at least I can work now continuosly