Fix in ../b09-link-to-existing-content/js/ltec.wplink.js :
<line 61>
$(“#ltec-search-in #wp-link-search”).remove();
<init: function(){} – line 211>
inputs.url = $( ‘#wp-link-url’ );
inputs.title = $( ‘#wp-link-text’ );
inputs.openInNewTab = $( ‘#wp-link-target’ );
inputs.search = $( ‘#wp-link-search’ );
or
https://www.dropbox.com/s/y7gzcnd8hmwzel5/b09-link-to-existing-content_fix_wp-4.2.zip?dl=0
